Heat rejected by reversible heat engine - Thermodynamics

Q.  What is the relation between heat rejected by any heat engine (Q2) and heat rejected by reversible heat engine (Q2R), when both are operating between same heat source and same heat sink?
- Published on 19 Aug 15

a. Q2 = Q2R
b. Q2 < Q2R
c. Q2 > Q2R
d. cannot say

ANSWER: Q2 > Q2R

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