A stream of toluene at 500°C and 2 bar, flowing at 40 kmol/h, is cooled to 200°C and 1 bar pressure in a heat exchanger. The surroundings are at 25°C. The Cp for toluene is not constant but toluene can be considered an ideal gas.
a)How much heat needs to be removed from the heat exchanger (kW)?
b)What is the rate of change in entropy for the toluene gas (kW/K)?
c)Is this process feasible according to the Second Law of Thermodynamics?