Question $4(25$ points$)$

The refrigerator shown in the figure below steadily receives a power input of $0\mathrm{.}13$ kW while

rejecting energy by heat transfer to the surroundings at a rate of $0\mathrm{.}63$ kW $.$ Determine

$($a$)$ the rate at which heat is removed from the refrigerated space, in kW $,(10$ marks$)[$SO$1-$PI$1]$

$($b$)$ the refrigerator's coefficient of performance.

$(15$ marks$)|SO1\frac{-}{P}$I $2||$