A closed office contains three computers each requiring 500 W to operate. The heat loss from the walls of the room to the surroundings gives a steady-state room temperature of 27° C when the computers are operating. The surrounding air is at 10° C. Determine:

A. The rate change in entropy of the ideal gas during this process.

B. The rate change in entropy of the surroundings during this process.

C. The rate change in entropy of the world (system + surroundings) during this process.