The frictionless piston/cylinder arrangement of Fig. 6.45 contains 2 kg of nitrogen at 40° C and 200 kPa. If the pressure is held constant, calculate the final temperature and the entropy change if a paddle wheel inserted in the insulated cylinder adds
a) 100 kJ of work,
b) 200 kJ of work,
c) 400 kJ of work. Assume constant specific heats from Table B-2.
Figure 6.45

Transcribed Image Text:

Piston T 40 C P 200 kPa 2 kg Nitrogen