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When a bottle of perfume is opened, odor...

When a bottle of perfume is opened, odorous molecules mix with air and slowly diffuse throughout the entire room. Which is not correct for this process?

A

`DeltaGlt0`

B

`DeltaSgt0`

C

`DeltasH~~0`

D

`DeltaSlt0`

Text Solution

Verified by Experts

The correct Answer is:
A
Odorous molecules mix with air by diffusion. Since gases are ideal, there are no intermolecular force between them. The driving force that causes the gases to mix can certainly not be any redistribution of the energy of the universe. The driving force is entirely due to the increases in entropy as the gases mix or an ideal gas expand into a large volume.
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A2Z-CHEMICAL THERMODYNAMICS-Entropy, Gibb'S Energy And Spontaneity Of Process
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  2. In which case, a spontaneous reaction is possible at any temperature

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  4. Change in entropy is negative for

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  5. In which of the following reactions DeltaS is positive?

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  7. When ice melts into water, entropy

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  8. The value of free energy change of an equilibrium process is

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  9. The standard entropies of N(2)(g),H(2)(g) and NH(3)(g) are 191.5, 192....

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  10. One mole of an ideal gas at 25^(@)C is subjected to expand reversible ...

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  11. The entropy change for the reaction given below is 2H(2)(g)+O(2)(g)r...

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  12. The a reaction to be spontaneous at all temperature

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  13. Which of the following statements is true? The entropy of the universe

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  14. Enthalpy of fusion of a liquid is 1.435Kcal mol^(-1) and molar entropy...

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  15. If S^(@) for H(2),Cl(2) and HCL are 0.13, 0.22 and 0.19KJK^(-1)mol^(-1...

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