Question

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 temperature inside the freezer?

Answer 1

Answer:

The temperature of the room is 42 degree C more than tje temperature of the freezer.

Hope it helps...

Answer 2

Answer:

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