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An engine operating between 150^(@)C and...

An engine operating between `150^(@)C` and `25^(@)C` takes 500 J heat from a higher temperature reservoir if there are no frictional losses, then work done by engine is

A

147.7 J

B

157.75J

C

165.85 J

D

169.95 J

Text Solution

Verified by Experts

The correct Answer is:
A
`T_(2)= 150 + 273 = 423 K, T_(1)= 25+ 273= 298KQ= 500K`
`(W)/(Q) = (T_(2)- T_(1))/(T_(2)), W = 500 ((423 - 298)/(423))= 147.7J`
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Knowledge Check

  • A Carnot's engine woeking between 27^(@)C and 127^(@)C takes up 800 J of heat from the reservoir in one cycle. What is the work done by the engine

    A
    `100J`
    B
    `200J`
    C
    `300J`
    D
    `400J`

  • An engine operating between 100^(@)C and 0^(@)C takes 453.6 kcal of heat. How much useful work can be done by it ?

    A
    `508.8 kJ`
    B
    `453.6 kcal`
    C
    `508.8 kcal`
    D
    None

  • A heat engine operating n between 227^(@) and 27^(@) C absorbs 2 K a cal of heat from the 227^(@) reservoir reversibly per cycle . The amount of work done in one cycle is

    A
    0. 4 cal
    B
    0.8 cal
    C
    4 Kcal
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    87 Kcal
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