The efficiency of an ideal heat engine working between the freezing...

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The efficiency of an ideal heat engine working between the freezing point and boiling point of
P water, is

WV
(a) \( 26.8 \% \)
(b) \( 20 \% \)
(c) \( 6.25 \%(\mathrm{~d}) 12.5 \% \)
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