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Four curves A, B, Cand Dare drawn in the...

Four curves A, B, Cand Dare drawn in the figure for a given amount of gas. The curves which represent adiabatic and isothermal changes are

A

C and D respectively

B

D and C respectively

C

A and B respectively

D

B and A respectively

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CHETANA PUBLICATION-Thermodynamics-EXERCISE
  1. delta Q = delta U is true for

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  2. For isothermal expansion of perfect gas, the value of delta fra(P)(P) ...

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  3. Four curves A, B, Cand Dare drawn in the figure for a given amount of ...

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  4. A given mass of a gas expands from state A to state B by three paths 1...

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  5. If w1 and w2 are the amounts of work done in the given two indicator d...

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  6. In the indicator diagram shown, the work done along the path AB is br>

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  7. In the indicator diagram shown, the work done in the cyclic process is...

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  8. The internal energy of air in a room of volume 40 m^3 atstandard atmos...

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  9. A gas undergoes a change of state during which 100 J of heat is suppli...

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  10. The amount of work done to increase the temperature of one mole of an ...

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  11. Two engines A and B have their sources at 400 K and 350 K and sinks at...

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  12. If two thirds of the heat taken by a heat engine from the source is gi...

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  13. The efficiency of a heat engine is 20%, when the working substance is ...

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  14. If the absolute temperatures of the source and sink of a heat engine a...

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  15. Two Carnot engines A and B are operated in series. A receives heat at ...

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  16. A refrigerator has a coefficient of performance 9. If the surrounding ...

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  17. A refrigerator works between 0^@C and 27^@C. If heat is to be removed ...

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  18. A gas in a closed container is heated with 10 J of energy , causing t...

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  19. Which of the following is an example of the first law of thermodynamic...

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  20. Efficiency of a Carnot engine is large when

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