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The maximum efficiency of heat engine op...

The maximum efficiency of heat engine operating between `100 ^(@)` and `25^(@)C` is

A

`25%`

B

`30%`

C

`20.0%`

D

`10%`

Text Solution

Verified by Experts

The correct Answer is:
C
`eta=(T_(2)-T_(1))/(T_(2))=(373-298)/(373)=0.20` or `20%`
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DINESH PUBLICATION-CHEMICAL THERMODYNAMICS AND CHEMICAL ENERGETICS -Exercise
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  4. A gas absorbs 250 J of heat and expands from 1 litre to 10 litres agai...

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  5. Which of the following value of DeltaH(f)^(@) represent that the produ...

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  9. For a system in equilibrium, DeltaG=0, under conditions of constant

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  10. In the reversible reaction of the type A+B hArr AB, in general.

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  11. Given C(s)+O(2)(g)toCO(2)(g), DeltaH=-395 kJ S(s)+O(2)(g)toSO(2)(g...

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  13. If the enthalpy of vaporisation of water is 186.5 J mol^(-1), then ent...

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  14. The DeltaH value for reaction C+(1)/(2)O(2)toCO and CO+(1)/(2)O(2)to...

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  15. Given : C("diamond")+O(2)rarrCO(2),DeltaH=-395 kJ C("graphite"...

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  16. The law of Lavoisier and Laplace illustrates

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  17. For the reaction H(2)+I(2)hArr2NHI, DeltaH=12.40 kcal. The heat of f...

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  18. According to the reaction C(6)H(6)+15//2O(2)to3H(2)O+6CO(2) (Delta...

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