College Physics with MasteringPhysics 7th Edition by Jerry Wilson,Anthony Buffa,Bo Lou

تمرين 61

We all have had the experience that a room full of people always feels warmer than when the room is empty. Ten people are in a 4.0 m × 6.0 m × 3.0 m room at 20 °C. If each person gives off heat at a rate of about 100 W and there is no heat loss to the outside of the room, what is the temperature of the room after 10 min At 20 °C, the density of air is 1.2 kg/m 3 and its specific heat at constant pressure is 1005 J/(kg · °C).