The temperature inside the freezer is −10°C and the temperature of the room is 32°C. How much higher is the temperature of the room than the
Answers
Answered by
3
Coefficient of Performance of Refrigerator COP=
W
Q
c
=
t
1
−t
2
t
2
+273
Temperatures should be written in kelvin.
We have to find heat given to room per unit electrical energy.
Room is at higher temperature and act as hot reservoir. And electrical energy is the input energy shown as W.
So, we have to find
W
Q
H
Again, Q
H
=Q
c
+W
⟹
W
Q
H
=
W
Q
c
+1
=
t
1
−t
2
t
2
+273
+1
⟹
W
Q
H
=
t
1
−t
2
t
1
+273
Answered by
10
Step-by-step explanation:
32-(-10) = 42 °c is ur answer and have a nice evening
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