Question

EXAMPLE 15 A bulb of 100 watt is switched on in a room of
dimension (5 x 4 x3)m". What will be the increase in
temperature of room after 15 minutes, if specific heat of air at
room temperature and 1 atm is 0.71Jg-K and heat
capacity of four walls and the roof is 50 x103 JK-I. (density
of air =1.22 x 10-kg m[_!)?​

Answer 1

Explanation:

air with bubble of a water is concede