A certain room measures 15 ft by 10 ft by 8 ft.
(a) Compute the thermal capacitance of the room air using cp = 6.012 x 103 ft-lb/slug- oF and ( = 0.0023 slug/ft3,
(b) How much energy is required to raise the air temperature from 68°F to 72°F neglecting heat transfer to the walls, floor, and ceiling?