20J of heat energy is extracted from a cold reservoir when 30J of work – McqOptions

MCQOPTIONS

1.	20J of heat energy is extracted from a cold reservoir when 30J of work is done on a refrigerator. What is the coefficient of the refrigerator?
A.	2/3
B.	5/3
C.	3/5
D.	1/3
Answer» B. 5/3

Discussion

No Comment Found

Related MCQs

20J of heat energy is extracted from a cold reservoir when 30J of work is done on a refrigerator. What is the coefficient of the refrigerator?
The coefficient of a refrigerator can be greater than 1. True or False?
Efficiency of a refrigerator can be greater than 1. True or False?
Select the correct order of steps in which a working substance(gas) goes through in a refrigerator.
What is the coefficient of performance of a refrigerator? Let Q<sub>1</sub> be the heat released to hot reservoir, Q<sub>2</sub> be the heat extracted from a cold reservoir & W be the work done on the refrigerator.