Consider a heat engine as shown in figure Q 1 and Q 2 are heat added to heat bath T 1 and heat taken from T 2 in one cycle of engine. W is the mechanical work done on the engine. If W > 0, then possibilities are
(i) Q 1 > Q 2 > 0 (ii) Q 2 > Q 1 > 0
(iii) Q 2 < Q 1 < 0 (iv) Q 1 < 0, Q 2 > 0
Text Solution
Verified by ExpertsThe correct answer is:
B
Here the given figure represent the working of a refrigerator 
If 
then 
If 
is negative 
is also negative (but less negative as W > 0)
Hence (iii) is also correct.
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