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Assertion: A reaction 2SO(2)+O(2)hArr2SO...

Assertion: A reaction `2SO_(2)+O_(2)hArr2SO_(3)` , has `K_(p)` at 298 K and 500 K as `4.0xx10^(24` and `8.5xx10^(10)` respectively.
Reason: The `E_(a)` for the forward reaction is lesser than `E_(b)` for the backward reaction.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If assertion is false but reason is true.

Text Solution

Verified by Experts

The correct Answer is:
A
`K_(p)` decreases with temperature and thus, `Delta H = -ve` . Also `Delta H = E_(a) (f) - E_(a) (b)` . The negative value of `Delta H` is possible only when `E_(a) (b) gt E_(a) (f)` .
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A2Z-CHEMICAL EQUILIBRIUM-Section B - Assertion Reasoning
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  2. Assertion: A reaction 2SO(2)+O(2)hArr2SO(3) , has K(p) at 298 K and 50...

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  6. Assertion: The m.pt. of ice is lowered on increasing the pressure, whe...

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  8. Assertion: The equilibrium in physical system is also dynamic in natur...

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  9. Assertion: The melting point of solid (except ice) increases with incr...

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  10. Assertion: Association of an inert gas at constant pressure to dissoci...

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