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In thermodynamics, a process is called r...

In thermodynamics, a process is called reversible when

A

System and surrounding change into each other

B

There is no boundary between system and surrounding

C

The surroundings are always in equilibrium with the system

D

The system changes into the surroundings spontaneously

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The correct Answer is:
C
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AAKASH INSTITUTE-THERMODYNAMICS-ASSIGNMENT (Section - B) Objective Type Questions
  1. In a reversible process, Delta S(sys) + Delta S(surr) is

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  2. A closed flask contains a substance in all its three states, solids, l...

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  3. In thermodynamics, a process is called reversible when

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  4. The molar heat capacity of water at constant pressure P is 75 J K ^(-1...

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  5. 16g oxygen gas expands at STP to occupy double of its oxygen volume. T...

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  6. When enthalpy and entropy change for a chemical reaction are -2.5 xx10...

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  7. The temperature at which the given reaction is at equilibrium Ag(2)O(s...

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  8. One mole of a non-ideal gas undergoes a change of state ( 2.0 atm, 3....

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  9. Which of the following can be zero for isothermal reversible expansion...

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  10. In an isulated container water is stirred with a rod to increase the t...

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  11. Two atoms of hydrogen combine to form a molecule of hydrogen gas, the ...

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  12. The temperature of 15 ml of a strong acid increases by 2^(@)C when 15 ...

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  13. The standard heat of formation of NO(2)(g) and N(2)O(4)(g) are 8.0 an...

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  14. If (1)/(2)X(2)O((s)) rarr X((s))+(1)/(4)O(2(g)),DeltaH=90kJ then heat ...

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  15. For a gaseous reaction A(g) + 3 B(g) rightarrow 3C(g) + 3D(g) Dela...

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  16. A mixture of 2 moles of CO and 1 mole of O(2), in a closed vessele is ...

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  17. If the bond dissociation energies of XY,X(2) and Y(2)( all diatomic mo...

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  18. Vapour density of a gas is 8. Its molecular mass will be

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  19. If x mole of ideal gas at 27^(@)C expands isothermally and reversibly ...

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  20. Enthalpy of formation of NH(3) is -X kJ and Delta H(H-H), Delta H(N-H)...

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