A torque of 50 Nm is required to rotate the paddle wheel shown in Fig. 6.47 at

A torque of 50 Nˆ™m is required to rotate the paddle wheel shown in Fig. 6.47 at 60 rad/s. If it rotates for 2 minutes during which time 200 kJ of heat is transferred to the air from a reservoir, calculate the final temperature in this rigid volume and the entropy increase in the air. Assume constant specific heats from Table B-2.
Figure 6.47

Transcribed Image Text:

Piston T 40 C P, 200 kPa 2 kg Air