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A engine has an efficiency of 1//3. The ...

A engine has an efficiency of `1//3`. The amount of work this engine can perform per kilocalorie of heat input is

A

1400 cal

B

700 cal

C

700 J

D

1400 J

Text Solution

Verified by Experts

The correct Answer is:
D
We have Efficiency ,`eta=(W)/(Q_(1))`
The amount of this work
`W=eta Q_(1)=(1)/(3)xx1000"cal"=(1000)/(3)xx4.2=1400J`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-KINETIC THEORY OF GASES ANDRADIATION-Exercise 1
  1. The temperature -entropy diagram of a reversible engine cycle is given...

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  2. A carnot's engine works between a source at a temperature of 27^(@)C a...

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  3. A engine has an efficiency of 1//3. The amount of work this engine can...

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  4. The coeffcient of performance of a refrigerator working between 10^(@)...

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  5. A Carnot engine used first ideal monoatomic gas and then an ideal diat...

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  6. A body having 110 and70^(@)C temperatures of surrounding and of itsel...

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  7. What is the source temperature of the carnot engine reuired to get 70 ...

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  8. A carnot engine operates with source at 127^(@)C and sink at 27^(@)C. ...

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  9. A carnot engine has efficiency 1//5 . Efficiency becomes 1//3 when tem...

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  10. A Carnot engine, whose efficiency is 40%, takes in heat from a source ...

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  11. A Carnot engine, whose efficiency is 40%, takes in heat from a source ...

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  12. A refrigerator works between temperature of melting ice and room tempe...

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  13. A Carnot engine whose source is at 400 K takes 200 cal of heat and rej...

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  14. A Carnot's engine has an efficiency of 50 % at sink temperature 50^(@...

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  15. An ideal gas heat engine operates in a carnot cycle between 227^(@)C ...

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  16. A Carnot reversible engine converts 1//6 of heat input into work . Whe...

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  17. Consider the statement (A) and (B) and identify the carrect answers. ...

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  18. Solar radiation emitted by sun resembles that emitted by a body at a t...

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  19. The energy emitted per second by a black body at 27^(@)C is 10 J. If t...

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  20. The temperature of coffee in a cup with time is most likely given by ...

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