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A carnot engine takes in 1000 K cal of h...

A carnot engine takes in `1000 K cal` of heat from a reservoir at `627^(@)C` and exhausts heat to sink at `27^(@)C`. What is its efficiency? What is useful work done//cycle by the engine.

Text Solution

Verified by Experts

The correct Answer is:
`66.6%`
Efficiency of Carnot engine
`eta =1 -(T_(2))/(T_(1)) =1 -(300)/(900) = (2)/(3) , or eta = 66.6 %`
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Knowledge Check

  • A carnot engine takes 6000 cal of heat from a reservoir at 627^(@)C and gives it to a sink at 27^(@)C . The work done by the engine is

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    A
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    B
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    C
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    D
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