PG entrance exam IIT JAM 2025 Mock Test Chemical Sciences Chemical Thermodynamics

Which of the following equations correctly describe the efficiency \((η)\) of a Carnot engine?

1
\(\eta = 1 - \frac{T_c}{T_h}\)
2
\(\eta = \frac{-W}{Q_h}\)
3
\(\eta = 1 - \frac{Q_c}{Q_h}\)
4
\(\eta = \frac{Q_h - Q_c}{Q_h}\)
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