Solve this:
Q5. The COP of a refrigerator is 5 is kept in a room having temperature at 27 C temperature inside the refrigerator will be
(A) - 23
(B) - 27
(C) - 46
(D) - 54
Q6. The temperature of the gas before and after expansion
(A) Tbefore > Tafter
(B) Tbefore < Tafter
(C) Tbefore = Tafter
(D) needs more information
Dear Student
COP or coefficient of performance” represented as β , defined as the ratio of the heat extracted from the cold body to the work needed to transfer it to the hot body.
Hence from the formula we have
![](https://s3mn.mnimgs.com/img/shared/content_ck_images/ck_5ac1f1d1e43e2.png)
Hence, option A is correct
remaining query ask in next thread.
Regards
COP or coefficient of performance” represented as β , defined as the ratio of the heat extracted from the cold body to the work needed to transfer it to the hot body.
Hence from the formula we have
![](https://s3mn.mnimgs.com/img/shared/content_ck_images/ck_5ac1f1d1e43e2.png)
Hence, option A is correct
remaining query ask in next thread.
Regards