Which statement is incorrect?

  • A
    Carnot cycle has the maximum efficiency in all cycles
  • B
    Carnot cycle is a reversible one
  • C
    Reversible cycle has more efficiency than an irreversible one
  • D
    All reversible cycles have same efficiency

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The temperature of the source of a Carnot engine operating with an efficiency of $70\%$ is $1000 \ K$. The temperature of its sink is ...... $K$.

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Who first proposed (invented) the Carnot engine?

An ideal gas heat engine operates in a Carnot cycle between $227\,^{\circ}C$ and $127\,^{\circ}C$. It absorbs $6.0 \times 10^4\,cal$ at the higher temperature. The amount of heat converted into work is equal to

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$A$ Carnot engine has an efficiency of $50\%$ when its source is at a temperature $327^{\circ}C$. The temperature of the sink is $.........^{\circ}C$.

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