During summer season, a room measuring 10 × 13 × 6 m³ is cooled electrically from initial temperature 28°C to 2°C. The air pressure inside the room is same as surroundings and is equal to 72 cm of Hg. The pressure remains constant during the cooling process. The cooling capacity of furniture and wall is 35 kJ/K. The specific heat of air is 1.005 kJ/kgK. Calculate the amount of electric energy needed for cooling the room. How much air comes out through gaps and windows during cooling period?
Tuntun KumarBegginer
During summer season, a room measuring 10 × 13 × 6 m3 is cooled electrically from initial temperature 28°C to 2°C. The air pressure inside the room is same as surroundings and is equal to 72 cm of Hg. The pressure remains constant during the cooling process. The cooling capacity of furniture and wall is 35 kJ/K. The specific heat of air is 1.005 kJ/kgK. Calculate the amount of electric energy needed for cooling the room. How much air comes out through gaps and windows during cooling period?
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