A Carnot engine takes 3xx10^6 cal of hea...

A Carnot engine takes `3xx10^6` 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:

A

`4.2 xx10^6J`

B

`8.4 xx10^6J`

C

`16.8 xx10^6J`

D

Zero

Verified by Experts

The correct Answer is:

B

Since,`eta=w/(Q_1)=1-T_2/T_1`
`implies W=[1-((273+27))/((273+626))]xx3xx10^6 xx4.2J`
`implies w = 8.4 xx10^6J`

Similar Questions

Explore conceptually related problems

A Carnot engine takes 3xx10^6cal . of heat from a reservoir at 62^@C , and gives it to a sink at 27^@C . The work done by the engine is

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

A Carnot engine takes 9000 cal of heat from a reservoir at 627^@ C and gives it to a sink at 27^@C . The work done by the angine is

A carnot engine take 3*10^(6) cal of heat from a reservoir at 627C ,and gives it to a sink at 27C .The work done by the engine is

A carnot engine takes in 3000 kcal of heat from a reservoir at 627°C and gives it to a sink at 27°C. The work done by the engine is

A carnot engine takes in 3000 kcal of heat from a reservoir at 627^@C and gives a part of it to a sink at 27^@C . The work done by the engine is

A carnot engine takes 900 Kcal of heat from a reservoir at 723^(@)C and exhausts it to a sink at 30^(2)C the work done by the engine is