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If the enthalpy of vaporisation of water...

If the enthalpy of vaporisation of water is `186.5 J mol^(-1)`, then entropy of its vaporisation will be

A

`0.5 KJK^(-1)mol^(-1)`

B

`1.0KJK^(-1)"mole"^(-1)`

C

`1.5KJK^(-1)"mole"^(-1)`

D

`2.0KJK^(-1)"mole"^(-1)`

Text Solution

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The correct Answer is:
A
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ALLEN-THERMODYNAMICS -EXERCISE -2
  1. Which has the least entropy :

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  2. When two gases are mixed the entropy :-

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  3. If the enthalpy of vaporisation of water is 186.5 J mol^(-1), then ent...

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  4. Calculate the enthalpy of vaporisation per mole for ethanol. Given Del...

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  5. If 900J//g of heat is exchanged at boiling point of water then water...

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  6. Calculate the enthalpy of vaporisation per mole for ethanol. Given Del...

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  7. 5 mol of an ideal gas expand reversibly from a volume of 8 dm^(3) to 8...

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  8. In a spontaneous irreversible process the total entropy of the system ...

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  9. The total entropy change for a system and its surroundings increases, ...

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  10. Calculate the entropy of Br(2)(g) in the reaction H(2)(g)+Br(2)(g)rarr...

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  11. Ammonium chloride when dissolved in water leads to a cooling sensation...

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  12. In which of the following cases entropy decreases?

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  13. Which of the following state function is not zero at standard state :-

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  14. Entropy change for an adiabatic reversible process is

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

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  16. For a reaction at 25^(@)C enthalpy change (Delta H) and entropy change...

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  17. The spontaneous nature of a reaction is impossible if :

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

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

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  20. The temperature at which the reaction : Ag(2)O(s)rarr 2Ag(s)+1//2O(2)(...

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