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A Carnot's engine used first an ideal mo...

A Carnot's engine used first an ideal monoatomic gas then an ideal diatomic gas. If the source and sink temperature are `411^(@)C and 69^(@)C` respectively and the engine extracts `1000 J` of heat in each cycle, then area enclosed by the `PV` diagram is

A

`100 J`

B

`300 J`

C

`500 J`

D

`700 J`

Text Solution

Verified by Experts

The correct Answer is:
C
`eta = 1-(T_2)/(T_1) = 1-((273+69)/(273+411)) = 0.5`
`implies Work don e = eta xx Q = 0.5xx1000 = 500J`.
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