Consider a class room of dimensions at temperature and pressure 1 atm
PHYSICS · Subjective · CBSE · Physics · Kinetic Theory · Kinetic Theory
Problem
Consider a class room of dimensions 5×10×3 m3 at temperature 20∘C and pressure 1 atm. There are 50 peoples in the room, each losing energy at the average of 150 watt. Assuming that the walls, ceiling, floor and furniture perfectly insulated and none of them absorbing heat, how much time will be needed for rising the temperature of air in the room to body temperature, i.e., 37∘C ? For air Cp=27R . Loss of air to the outside as the temperature rises may be neglected.