Reaction $A{\rightarrow}B$ is carried out in a reactor operating at steady state and $1$ mol/$s$ of pure $A$ at $425^{\circ}C$ enters the reactor. The outlet stream leaves the reactor at $325^{\circ}C$. The heat input to the reactor is $17\:kW$. The heat of reaction at the reference temperature of $25^{\circ}C$ is $30$ $kJ$/mol. The specific heat capacities (in $kJ$/mol $K$) of $A$ and $B$ are $0.1$ and $0.15$, respectively.

The molar flowrate of $B$ leaving the reactor, rounded to $2$ decimal places, is ________ mol/$s$.