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GATE Chemical 2018 | Question: 50
In a closed piston-cylinder system, methane was observed to obey the following equation of state$$P\left ( V-nb \right )=nRT$$where $b=0.029\:m^{3}$/mol. The temperature ...
gatecse
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gatecse
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Feb 20, 2018
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gate2018
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GATE Chemical 2024 | GA Question: 5
On a given day, how many times will the second-hand and the minute-hand of a clock cross each other during the clock time $12:05:00$ hours to $12: 55: 00$ hours?$51...
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2.8k
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admin
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Feb 16
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GATE Chemical 2024 | Question: 27
The temperatures of two large parallel plates of equal emissivity are $900 \mathrm{~K}$ and $300 \mathrm{~K}$. A reflection radiation shield of low emis...
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2.8k
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Feb 16
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GATE Chemical 2014 | Question: 33
A brick wall of $20\:cm$ thickness has thermal conductivity of $0.7\:W\:m^{-1}\:K^{-1}$. An insulation of thermal conductivity $0.2\:W\:m^{-1}\:K^{-1}$ is to be applied o...
Milicevic3306
7.9k
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Milicevic3306
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Mar 25, 2018
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gate2014
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GATE Chemical 2024 | Question: 9
The ratio of the activation energy of a chemical reaction to the universal gas constant is $1000 \mathrm{~K}$. The temperature-dependence of the reaction rate constant fo...
admin
2.8k
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admin
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Feb 16
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GATE CH 2022 | Question: 8
In soap manufacturing, the triglycerides present in oils and fats are hydrolyzed to mainly produce Fatty ... glycerol Glycerol only Fatty acids only Glycerol and paraffins
In soap manufacturing, the triglycerides present in oils and fats are hydrolyzed to mainly produceFatty acids and glycerolGlycerol onlyFatty acids onlyGlycerol and paraff...
Arjun
4.7k
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Arjun
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Feb 15, 2022
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GATE Chemical 2015 | Question: 48
In the figure below, the temperature profiles of cold and hot fluids in counter double pipe heat exchangers (in different modes of operation) are shown on the left. For e...
Milicevic3306
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Milicevic3306
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Mar 26, 2018
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GATE Chemical 2019 | Question: 7
Consider a cylinder (diameter $D$ and length $D$), a sphere (diameter $D$) and a cube (side length $D$). Which of the following statements concerning the sphericity $\lef...
Arjun
4.7k
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Arjun
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Feb 24, 2019
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GATE Chemical 2024 | Question: 55
Consider a tray-column of diameter $120 \mathrm{~cm}$. Each downcomer has a cross-sectional area of $575 \mathrm{~cm}^{2}$. For a tray, the percentage column cross-sectio...
admin
2.8k
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admin
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Feb 16
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gatech-2024
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GATE CH 2023 | Question: 63
A design engineer needs to purchase a membrane module $(\mathrm{M})$ ...
A design engineer needs to purchase a membrane module $(\mathrm{M})$ for a plant. Details about the two available options, $\text{M1}$ and $\text{M2,}$ are given in the t...
admin
2.8k
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admin
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May 21, 2023
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GATE Chemical 2024 | Question: 13
Consider the control structure for the overhead section of a distillation column shown in the figure. The composition controller (CC) controls the heavy ke...
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2.8k
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Feb 16
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GATE CH 2023 | Question: 30
Given that $E$ (in W. $\mathrm{m}^{-2}$ ) is the total hemispherical emissive power of a surface maintained ... . $E$ does not depend on the frequency of the emission.
Given that $E$ (in W. $\mathrm{m}^{-2}$ ) is the total hemispherical emissive power of a surface maintained at a certain temperature, which of the following statements is...
admin
2.8k
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admin
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May 21, 2023
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GATE Chemical 2016 | Question: 31
A jacketed stirred tank with a provision for heat removal is used to mix sulphuric acid and water in a steady state flow process. $H_{2}SO_{4}$ $(l)$ enters at a rate of ...
Milicevic3306
7.9k
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Milicevic3306
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Mar 26, 2018
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gate2016
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GATE Chemical 2024 | Question: 15
In an ammonia manufacturing facility, the necessary hydrogen is generated from methane. The facility consists of the following process units -$\text{P}$: M...
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2.8k
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Feb 16
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GATE Chemical 2024 | Question: 47
Ethylene obeys the truncated virial equation-of-state\[\frac{P V}{R T}=1+\frac{B P}{R T}\]where $P$ is the pressure, $V$ is the molar volume, $T$ is the absolute temperat...
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2.8k
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Feb 16
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GATE CH 2023 | Question: 50
Orsat analysis showing the composition (in $\text{mol} \%,$ on a dry basis) of a stack gas is given in the table below ...
Orsat analysis showing the composition (in $\text{mol} \%,$ on a dry basis) of a stack gas is given in the table below. The humidity measurement reveals that the mole fra...
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2.8k
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May 21, 2023
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GATE CH 2022 | Question: 11
A control system on the jacket side of a reactor is shown in the figure. Pressurized water flows through the jacket to cool ... $\text{LC}$ : Direct, $\text{TC}$ : Direct
A control system on the jacket side of a reactor is shown in the figure. Pressurized water flows through the jacket to cool the reactor. The heated water flashes in the b...
Arjun
4.7k
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Arjun
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Feb 15, 2022
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GATE CH 2022 | Question: 23
A wet solid containing $20\%$ $\text{(w/w)}$ moisture (based on mass of bone-dry solid) is dried in a tray-dryer. ... $\text{(w/w)}$ (rounded off to one decimal place).
A wet solid containing $20\%$ $\text{(w/w)}$ moisture (based on mass of bone-dry solid) is dried in a tray-dryer. The critical moisture content of the solid is $10\%$ $\t...
Arjun
4.7k
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Arjun
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Feb 15, 2022
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GATE Chemical 2019 | Question: 33
The combination that correctly matches the process in Group-$1$ with the entries in Group-$2$ is $\begin{array}{cc}\&\text{Group-1} & \text{Group-2} \\ &\text{P. Wulff pr...
Arjun
4.7k
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Feb 24, 2019
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GATE Chemical 2014 | Question: 34
An oil with a flow rate of $1000\:kg/h$ is to be cooled using water in a double-pipe counter-flow heat exchanger from a temperature of $70^{\circ}C$ to $40^{\circ}C$. Wat...
Milicevic3306
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Milicevic3306
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Mar 25, 2018
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GATE Chemical 2019 | Question: 28
An incompressible Newtonian fluid flows in a pipe of diameter $D_{1}$ at volumetric flow rate $Q$. Fluid with same properties flows in another pipe of diameter $D_{2}=D_...
Arjun
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Arjun
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Feb 24, 2019
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GATE Chemical 2016 | Question: 46
Consider the following two cases for a binary mixture of ideal gases $A$ and $B$ under steady state conditions. In case $1$, the diffusion pf $A$ occurs through non-diffu...
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Mar 26, 2018
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GATE CH 2022 | Question: 51
Information for a proposed greenfield project is provided in the table. The discounted cash flow for the fourth year is Rs ...
Information for a proposed greenfield project is provided in the table. The discounted cash flow for the fourth year is Rs ___________________ crores (rounded off to one ...
Arjun
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Arjun
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Feb 15, 2022
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GATE Chemical 2019 | Question: 9
Pool boiling equipment operating above ambient temperature is usually designed to operatefar above the critical heat fluxnear the critical heat fluxfar above the Leidenfr...
Arjun
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Arjun
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Feb 24, 2019
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GATE Chemical 2017 | Question: 14
Which of the following conditions are valid at the plait point?Density difference between the extract and raffinate phases is zeroInterfacial tension between the extract...
Milicevic3306
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Milicevic3306
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Mar 26, 2018
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GATE CH 2021 | Question: 9
In reverse osmosis, the hydraulic pressure and osmotic pressure at the feed side of the membrane are $P_1$ and $\pi_1$, ... $P_1 - \pi_1 = P_2-\pi_2$
In reverse osmosis, the hydraulic pressure and osmotic pressure at the feed side of the membrane are $P_1$ and $\pi_1$, respectively. The corresponding values are $P_2$ a...
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go_editor
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Mar 1, 2021
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GATE Chemical 2019 | Question: 25
Consider a sealed rigid bottle containing $CO_{2}$ and $H_{2}O$ at $10$ bar and ambient temperature. Assume that the gas phase in the bottle is pure $CO_{2}$ and follows ...
Arjun
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Arjun
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Feb 24, 2019
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GATE Chemical 2012 | Question: 14
For heat transfer across a solid-fluid interface, which one of the following statements is $\text{NOT}$ true when the Biot number is very small compared to $1$?Conduction...
Milicevic3306
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Mar 25, 2018
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GATE Chemical 2018 | Question: 45
For a closed-loop system, consider the following transfer functions:process $G_{p}\left ( s \right )$, controller $G_{c}\left ( s \right )$, measuring device $G_{m}\left ...
gatecse
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Feb 20, 2018
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GATE Chemical 2018 | Question: 39
A $CSTR$ and a $PFR$ of equal volume are connected in series as shown below to carry out a first-order, isothermal, liquid phase reaction$$A{\rightarrow}P$$The rate const...
gatecse
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gatecse
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Feb 20, 2018
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GATE Chemical 2024 | Question: 25
The capital cost of a distillation column is Rs. $90$ lakhs. The cost is to be fully depreciated (salvage value is zero) using the double-declining balance method over $1...
admin
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admin
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Feb 16
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GATE Chemical 2024 | Question: 39
For purchasing a batch reactor, three alternatives $\mathrm{P}, \mathrm{Q}$ and $\mathrm{R}$ have emerged, as summarized in the table. For a compound inter...
admin
2.8k
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admin
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Feb 16
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GATE CH 2023 | Question: 53
A large tank is filled with water (density $=1 \mathrm{~g} \cdot \mathrm{cm}^{-3}$ ... ) is____________(rounded off to two decimal places).
A large tank is filled with water (density $=1 \mathrm{~g} \cdot \mathrm{cm}^{-3}$ ) upto a height of $5 \mathrm{~m}$. A $100 ~ \mu \mathrm{m}$ diameter solid spherical p...
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2.8k
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admin
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May 21, 2023
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GATE CH 2022 | Question: 48
In the block diagram shown in the figure, the transfer function ... remains stable is ___________________ (rounded off to two decimal places).
In the block diagram shown in the figure, the transfer function $G = \dfrac{K}{\left ( \tau s + 1 \right )}$ with $K 0$ and $\tau 0$. The maximum value of $K$ below whi...
Arjun
4.7k
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Arjun
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Feb 15, 2022
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gatech-2022
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GATE Chemical 2014 | Question: 37
A homogenous reaction $(R{\rightarrow}P)$ occurs in a batch reactor. The conversion of the reactant $R$ is $67\%$ after $10$ minutes and $80\%$ after $20$ minutes. The ra...
Milicevic3306
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Milicevic3306
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Mar 25, 2018
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GATE Chemical 2018 | Question: 17
The reactant ($M$) is converted into product ($N$) in the presence of catalyst in a fixed bed reactor. All the flow rates ($F,\:G,\:H,\:P $ and $R$) in mol/$s$, and mole ...
gatecse
1.4k
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gatecse
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Feb 20, 2018
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GATE Chemical 2024 | Question: 24
The opposite faces of a metal slab of thickness $5 \mathrm{~cm}$ and thermal conductivity $400 \mathrm{~W} \mathrm{~m}^{-1}{ }^{\circ} \mathrm{C}^{-1}$ are maintained at ...
admin
2.8k
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admin
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Feb 16
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GATE Chemical 2024 | Question: 40
The Newton-Raphson method is used to solve $f(x)=0$, where $f(x)=e^{x}-5 x$.If the initial guess $x^{(0)}=1.0$, the value of the next iterate, $x^{(1)}$, rounded off to $...
admin
2.8k
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admin
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Feb 16
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GATE CH 2023 | Question: 45
Level $(h)$ in a steam boiler is controlled by manipulating the flow rate $(F)$ of the make-up (fresh) water using a ... used by the engineer? $0.25$ $2$ $4$ $6$
Level $(h)$ in a steam boiler is controlled by manipulating the flow rate $(F)$ of the make-up (fresh) water using a proportional (P) controller. The transfer function be...
admin
2.8k
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admin
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May 21, 2023
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GATE CH 2021 | Question: 21
The van der Waals equation of the state is given by $P_r = \dfrac{8T_r}{3v_r-1} - \dfrac{3}{v_r^2}$ ... equation of state is __________ (round off to $2$ decimal places).
The van der Waals equation of the state is given by$$P_r = \dfrac{8T_r}{3v_r-1} – \dfrac{3}{v_r^2}$$where $P_r$, $T_r$ and $v_r$ represent reduced pressure, reduced tem...
go_editor
1.4k
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go_editor
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Mar 1, 2021
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