Question

The coefficient of performance of a room air conditioner is 3. If the rate of doing work is 2 kW, the heat current is ______.

Options

• 6 kW

• 3 kW

• 1.5 kW

• 12 kW

Answer 1

The coefficient of performance of a room air conditioner is 3. If the rate of doing work is 2 kW, the heat current is 6 kW.

Explanation:

k = 3, p =. 2000 W

∴ `k= H/P`

∴ Heat current, H = kp = (3) x (2000)W

∴ H = 6000 W = 6 kW