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A scientist says that the efficiency of ...

A scientist says that the efficiency of his heat engine which operates at source temperature `127^(@)C` and sink temperature `27^(@)C is 26%`, then

A

It is impossible

B

It is possible but less probable

C

It is quite probable

D

Date are incomplete

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The correct Answer is:
A
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AAKASH INSTITUTE-THERMODYNAMICS-ASSIGNMENT (SECTION -C) (Previous Year Questions)
  1. The efficiency of a Carnot engine operating between temperatures of 10...

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  2. We consider a thermodynamic system. If DeltaU represents the increase ...

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  3. If the ratio of specific heat of a gas of constant pressure to that at...

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  4. An ideal gas at 27^(@)C is compressed adiabatically to 8//27 of its or...

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  5. Two Carnot engines A and B are operated in series. The engine A receiv...

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  6. The (W/Q) fo a Carnot engine is 1/6. Now the temperature of sink is re...

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  7. A scientist says that the efficiency of his heat engine which operates...

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  8. The efficiency of carnot engine is 50% and temperature of sink is 500K...

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  9. An ideal gas heat engine operates in a Carnot cycle between 27^(@)C an...

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  10. One mole of an ideal gas at an initial temperature true of TK does 6R ...

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  11. The amount of heat energy required to raise the temperature of 1 g of ...

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  12. Which of the following relations does not give the equation of an adia...

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  13. According to C.E van der Waal, the interatomic potential varies with t...

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  14. A gas in a vessel is at the pressure P(0). If the masses of all the mo...

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  15. The mean free path of collision of gas melecules varies with its diame...

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  16. At 0 K, which of the following properties of a gas will be zero ?

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  17. Write the units of van der Waals' constant 'a' and 'b'.

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  18. The degrees of freedom of a triatomic gas is

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  19. To find out degree of freedom, the correct expression is:

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  20. The equation of state for 5 g of oxygen at a pressure P and temperatur...

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