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delta Q = delta U is true for...

`delta Q` = `delta U` is true for

A

isochoric process

B

adiabatic process

C

isothermal process

D

isobaric process

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(Delta H - Delta U) for the formation of carbon monoxide (CO) from its elements at 298K is (R = 8.314 K^(-1)mol^(-1))

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If the measured values of two quantities are A +- Delta A and B +- Delta B , and Delta A and Delta B being the mean absolute errors. What is the maximum possible error in A + B ? Show that if Z=frac(A)(B) then frac (Delta Z)(Z) = frac (Delta A)(A) + frac (Delta B)(B)

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In which of the following reactions, Delta H is greater than Delta U ?

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CHETANA PUBLICATION-Thermodynamics-EXERCISE
  1. The internal energy of a gas decreases by an amount equal to the exter...

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  2. In a cyclic process

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  3. delta Q = delta U is true for

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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