Question

I need help on this:

Hi im really confused:
How much energy would be needed to raise the temperature of the air in a room by 5.0°C if the room measures 4.0m x 4.0m x 3.0m? (Density of air = 1.0kg/m³)
Assume that the room has no furniture and that the walls gain no thermal energy.

Answer 1

238.2 kJ

Step-by-step explanation:

Mass of air = volume * density

= 4 x 4 x 3 x 1 kg/m^3 = 48 kg

Specific heat of air = 993 J /(kg C)

993 = x Joules / ( 48 kg * 5 C) shows x = 238320 j