Old Exam Problem.

No computer was allowed, so you should be able to solve this with just a calculator.

The elementary gas$-$phase reaction $2A3B$ is carried out in a CSTR$.$ The feed is pure $A$

at $350K,$ with a flowrate of $4\mathrm{.}0\frac{L}{s}$ and $0\mathrm{.}14mo\frac{l}{s}.$ The reaction vessel is heated by

saturated steam $($ steam temperature $=170C)$ within a heating coil $(UA=25\frac{J}{s}-K).$ The exit

stream is a $25\%\frac{A}{75}\%B$ mixture by volume. What is the temperature in the reactor?

Assume:

$H_A^O(298{)}_{?}=-50k\frac{J}{m}ol$

$H_B^O(298)=-30k\frac{J}{m}ol$

$C{p}_A=30\frac{J}{m}ol-K$

$C{p}_B=15\frac{J}{m}ol-K$