A) \[200\,cal\]
B) \[180\,cal\]
C) \[42\,cal\]
D) \[160\,cal\]
Correct Answer: D
Solution :
efficiency = 20/100 = Work / heat absorbed = W/840 W= 168J Heat rejected = heat absorb - W = 840-168=672J=672/4.2 cal=160 calYou need to login to perform this action.
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