Question

A thermodynamics cycle takes in beat energy at a high temperature and rejects energy at a lower temperature. If the amount of energy rejected at a lower temperature. If the amount of energy rejected at the klow twmperature is 3 times the amount of work done by the cycle, the effceincy of the cycle is
A. 0.25
B. 0.33
C. 0.67
D. 0.9

Answer 1

Correct Answer - 1
`Q_(2)=3W`
`Q_(1)-Q_(2)=W`
`Q_(1)=4W`
`eta=1-Q_(2)/Q_(1)=1-3/4=1/4`