The elementary first order liquid phase reaction $AB$ is carried out in a jacketed CSTR$.$ Feed contains pure A and enters reactor molar flow rate of $60mo\frac{l}{m}in$ and the space time is $100$min with $k=0\mathrm{.}04mi{n}^{-1}.$ The overall heat transfer coefficient is $480ca\frac{l}{m^2}*min.K$ and heat exchanger area is $10m^2,$ heat of reaction is $-3,000ca\frac{l}{m}ol,$ and $C_{p0}=20ca\frac{l}{m}ol.K$ and $T_c=340K.$ If the reactor drifts to temperature of $400K$ getting conversion of $50\%,$ then determine which condition holds true;

i$.$ The reactor heats up

ii$.$ The reactor operates at steady state

iii. The reactor cools down

iv$.$ Not enough information