The maximum possible efficiency of a heat engine working between a hot reservoir at $T_1$ and a cold reservoir at $T_2$ is:

1. A $1 - T_1/T_2$
2. B $1 - T_2/T_1$ Correct answer
3. C $T_1/T_2$
4. D $T_2 - T_1$

Solution

Carnot efficiency $\eta = 1 - T_c/T_h$.

About this question

Subject: Physics · Chapter: Thermodynamics · Topic: Carnot Engine

This question is part of PrepWiser's free JEE Main question bank. 15 more solved questions on Thermodynamics are available — start with the harder ones if your accuracy is >70%.

More Thermodynamics questions

• Easy MCQ

  The work done by a gas in an isobaric expansion from $V_1$ to $V_2$ at pressure $P$ is:

• Medium MCQ

  For an adiabatic process, $PV^{\gamma} = $ const. For a monatomic ideal gas, $\gamma$ equals:

• Easy MCQ

  In an isothermal process for an ideal gas:

• Medium MCQ

  According to the Stefan-Boltzmann law, the power radiated by a black body is proportional to:

• Easy MCQ

  Most good thermal conductors are also: