Question

When a man returns to his well-sealed house on a summer day, he finds that the house is at 35°C. He turns on the air conditioner, which cools the entire house to 20°C in 30 min. If the COP of the air-conditioning system is 2.8, determine the power drawn by the air conditioner. Assume the entire mass within the house is equivalent to 800 kg of air for which $c_v = 0.72 \, kJ/kg \cdot °C$ and $c_p = 1.0 \, kJ/kg \cdot °C$.

Name: when a man returns to his well sealed house on a summer day he finds that the house is at 35c he turns on the air conditioner which cools the entire house to 20c in 30 min if the cop of the 29081
Uploaded: 2020-07-03T20:14:38-08:00
Duration: 4 min 15 s
Channel: Vipender Yadav
Description: when a man returns to his well sealed house on a summer day he finds that the house is at 35c he turns on the air conditioner which cools the entire house to 20c in 30 min if the cop of the 29081

          When a man returns to his well-sealed house on a summer day, he finds that the house is at 35°C. He turns on the air conditioner, which cools the entire house to 20°C in 30 min. If the COP of the air-conditioning system is 2.8, determine the power drawn by the air conditioner. Assume the entire mass within the house is equivalent to 800 kg of air for which $c_v = 0.72 \, kJ/kg \cdot °C$ and $c_p = 1.0 \, kJ/kg \cdot °C$.

when a man returns to his well sealed house on a summer day he finds that the house is at 35c he turns on the air conditioner which cools the entire house to 20c in 30 min if the cop of the 29081

Added by Amanda M.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Vipender Yadav

07/03/2020

Step 1

The heat removed $Q$ can be calculated using the formula: $Q = mc_v\Delta T$ where $m$ is the mass of air, $c_v$ is the specific heat at constant volume, and $\Delta T$ is the change in temperature. Show more…

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When a man returns to his well-sealed house on a summer day, he finds that the house is at 35°C. He turns on the air conditioner, which cools the entire house to 20°C in 30 min. If the COP of the air-conditioning system is 2.8, determine the power drawn by the air conditioner. Assume the entire mass within the house is equivalent to 800 kg of air for which $c_v = 0.72 \, kJ/kg \cdot °C$ and $c_p = 1.0 \, kJ/kg \cdot °C$.