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For a heat engine the temperature of the...

For a heat engine the temperature of the source is `127^(@)C` .To have `60%` efficiency the temperature of the sink is

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For an ideal heat engine, the temperature of the source is 127^(@)C . In order to have 60% efficiency the temperature of the sink should be _____ ""^(@)C . (Round off to the Nearest Integer)

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Knowledge Check

  • An engine has an efficiency of 1/6 . When the temperature of the sink is reduced by 62^(@)C , its efficiency becomes 1/3 , then the temperature of the source is

    A
    `62^(@)C`
    B
    `99^(@)C`
    C
    `37^(@)C`
    D
    `124^(@)C`

  • An engine is working . It takes 100 calories of heat from source and leaves 80 calories of heat to sink . If the temperature of source is 127^(@) C, then temperature of sink is

    A
    `147^(@)C`
    B
    `47^(@)C`
    C
    `100^(@)C`
    D
    `47K`

  • A reversible engine converts one-sixth of the heat input into work. When the temperature of the sink is reduced by 62^(@)C , the efficiency of the engine is doubled. The temperature of the source and sink are

    A
    `99^(@)C, 27^(@)C`
    B
    `80^(@)C, 37^(@)C`
    C
    `95^(@)C, 37^(@)C`
    D
    `90^(@)C, 37^(@)C`

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    A Carnot engine has an efficiency of 1//6 When the temperature of the sink is reduced by 62^@ C, its efficiency is doubled. The temperatures of the source and the sink are respectively,

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