An air-conditioner with an average COP of 2.5 consumes 15 kWh of electricity during a certain day. The amount of heat removed by this air-conditioner that day isQuestion 4Select one:a.23.5 MJb.54 MJc.21.6 MJd.135 MJe.6 MJ

An air-conditioning system operating on the reversed Carnot cycle is required to remove heat from the house at a rate of 32 kJ/s to maintain its temperature constant at 20 degrees C. If the temperature of the outdoors is 35 degrees C, the power required to operate this air-conditioning system isQuestion 5Select one:a.0.58 kWb.3.20 kWc.1.56 kWd.2.26 kWe.1.64 kW

The heat removal rate from a refrigerated space and the power input to the compressor are 7.2 kW and 1.8 kW, respectively. The coefficient of performance (COP) of the refrigerator is:

In a premise, 5 bulbs each of 100 W, 2 fans each of 60 W, 2 A.Cs each of 1.5 kW are used for 5h per day. Find:(a) total power consumed per day,(b) total power consumed in 30 days.(c) total electric energy consumed in 30 days.(d) the cost of electricity at the rate of Rs 6.25 per unit.

A refrigerator that consumes 3 kW of electricity when running and has a coefficient of performance of 1.5 is placed in a well-sealed room, and is plugged in with its door open. The rate of cooling or heating this refrigerator will provide to the air in the room when running isQuestion 8Select one:a.3 kJ/s, coolingb.4.5 kJ/s, coolingc.2 kJ/s, heatingd.4.5 kJ/s, heatinge.3 kJ/s, heating

An air conditioner is turned on and used for 10 800 seconds.During that time, it transfers 40.5 MJ of energy.Calculate the power of this air conditioner.Give your answer in watts. Make sure to include the units in your answer.