Question $2$

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 air$-$conditioning system is $2\mathrm{.}8,$

State assumptions, and

Determine:

$2\mathrm{.}1$ the power drawn by the air conditioner.

Assume the entire mass within the house is equivalent to $800$ kg of air for which $c_v=0\mathrm{.}72k\frac{J}{k}g*C$ and $c_p=1\mathrm{.}0k\frac{J}{k}g*C.$