Problem # p036

Ideal gas, change in entropy and work+heat

1/2 kg of CO2 undergoes a process from p1=1.5 bars, T1=300 K to p2=5 bars, T2=370 K. For this process the work was measured to be W=-33.0 kJ.

Assume that CO2 is an ideal gas with constants specific heats, cv=0.750 kJ/(kg K) and cp=0.939 kJ/(kg K).

For the above described process determine :

  1. the heat-transfer in kJ.

  2. the change in entropy in kJ/K.