A Sterling engine uses an energy source whose temperature is 727°C and an energy sink whose temperature is 27°C. How much heat must be added to the engine to produce 1 unit of work?

A Sterling engine uses an energy source whose temperature is 727°C an

1.	A Sterling engine uses an energy source whose temperature is 727°C and an energy sink whose temperature is 27°C. How much heat must be added to the engine to produce 1 unit of work?
A.	1.1
B.	1.19
C.	1.43
D.	2
Answer» D. 2