180. A 4 m x 5 m x 6 m room is to be heated by a baseboard resistance heater. It is desired that

the resistance heater be able to raise the air temperature in the room from 7 to 23°C within 15

minutes. Assuming no heat losses from the room and an atmospheric pressure of 100 kPa,

determine the required power of the resistance heater. Assume constant specific heats at room

temperature.

A. 2.34 kW B. 1.91 kW

C. 4.56 kW D. 6.34 kW