Question

The coefficient of performance of a Carnot refrigerator working between 30°C and O'Cis
1) 10
2) 1
3) 9
4)0​

Answer 1

Answer:

Explanation:

Given:−  

T  

2

​  

=0  

0

C=273K

T  

1

​  

=30  

0

C=273+30=303K

Formula to be used:

β=T  

2

​  

/T  

1

​  

 

=273/303−273

=273/30

=9.1

∴ coefficient of performance (β) of a carnot refrigerator is 9.1

Hence,

option (C) is correct answer.

Answer 2

1

because what Isai is alyays true .