An ideal heat engine exhausting heat at \[{{77}^{o}}C\] is to have a 3 – McqOptions

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1.	An ideal heat engine exhausting heat at \[{{77}^{o}}C\] is to have a 30% efficiency. It must take heat at [BCECE 2004]
A.	\[{{127}^{o}}C\]
B.	\[{{227}^{o}}C\]
C.	\[{{327}^{o}}C\]
D.	\[{{673}^{o}}C\]
Answer» C. \[{{327}^{o}}C\]

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