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Assertion: Molar entropy of vaporization...

Assertion: Molar entropy of vaporization of water is different from ethanol.
Reason: Water is more polar than ethanol.

A

Both `A`and `R` are true and `R` is the correct explantion of `A`

B

Both `A`and `R` are true and `R` is not a correct explantion of `A`

C

`A` is true but `R` is false

D

`A` is false but `R` is true

Text Solution

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The correct Answer is:
B
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DINESH PUBLICATION-CHEMICAL THERMODYNAMICS AND CHEMICAL ENERGETICS -Exercise
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  2. Assertion(A) : Helium has lower entropy than CO(2) gas which has lower...

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  3. Assertion: The enthalpy of formation of gaseous oxygen molecules at 29...

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  4. Assertion(A) : Heat of vaporisation is always endothermic. Reason(R ...

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  5. Assertion(A) : Endothermic compounds are stable than the exothermic co...

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  6. Assertion(A) : q is a state function. Reason(R ) : q is a path funct...

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  7. Assertion(A) : Heat of neutralisation is always less than zero. Reas...

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  8. Assertion(A) : Absolute value of H cannot be determined. Reason(R ) ...

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  9. Assertion(A) : Heat of neutralisation of HCl and NaOH is same as that ...

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  10. Assertion (A): The dissolution of gases in water is always an endother...

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  11. Assertion(A) : The enthalpy of formation of O(2) at 1 atmospheric pres...

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  12. Assertion(A) : Two systems which are both in thermal equilibrium with ...

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  13. Assertion(A) : The value of enthalpy of neutralisation of strong acid ...

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  14. Assertion(A) : Standard entropy of O(2) gas is gt 0. Reason(R ) : En...

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  15. Assertion(A) : Decrease of free energy during the process under partic...

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  16. Assertion:Absolute values of intenal energy of substances cannot be d...

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  17. Assertion: Mass and volume are extensive properties. Reason: Mass/vo...

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  18. Assertion: The heat absorbed during the isothermal expansion of an ide...

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  19. Assertion: The increase in internal energy (DeltaE) for the vaporisati...

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  20. Assertion: Molar entropy of vaporization of water is different from et...

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