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A gas is allowed to expand reversibly un...

A gas is allowed to expand reversibly under adiabatic conditions. What is zero for such a process ?

A

`Delta G = 0`

B

`Delta T = 0`

C

`Delta S = 0`

D

None of these

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The correct Answer is:
C
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ALLEN-THERMODYNAMICS -EXERCISE -2
  1. Which of the following state function is not zero at standard state :-

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  2. Entropy change for an adiabatic reversible process is

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  3. A gas is allowed to expand reversibly under adiabatic conditions. What...

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  4. For a reaction at 25^(@)C enthalpy change (DeltaH) and entropy change ...

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  5. The spontaneous nature of a reaction is impossible if

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  6. At a certain temperature T, the endothermic reaction A rarr B proceeds...

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  7. If Delta H gt 0 and Delta S gt 0, the reaction proceeds spontaneously ...

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  8. The temperature at which the reaction Ag(2)O(s)to2Ag(s)+(1)/(2)O(2)(...

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  9. The enthalpy change for a given reaction at 298 K is -x cal mol^(-1). ...

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  10. Which of the following is true fo the reacion H(2)O(l)hArr H(2)O(g) at...

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  11. For the reaction Ag(2)O(s) to 2Ag(s)+1/2 O(2)(g) the value of triangle...

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  12. For hypothetical reversible reaction 1//2A(2)(g) +3//2B(2)(g) rarr A...

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  13. For the precipitation of AgCl by Ag^(+) ions and HCl

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  14. What is the sign of Delta G for the process of ice melting at 283 K ?

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  15. What is the free energy change triangleG when 1.0 mole of water at 100...

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  16. A reaction A +B rarr C+D +q is found to have a positive entropy change...

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  17. Equilibrium constant of a reaction is related to :

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  18. van't Hoff equation is

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  19. If G^(@) gt 0 for a reaction then

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  20. The equilibrium constant for a reaction is 10. What will be the value ...

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