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For which of the following reactions, th...

For which of the following reactions, the entropy change will be positive?

A

`H_(2)(g)+I_(2)(g)hArr2HI(g)`

B

`HCl(g)+NH_(3)(g)hArrNH_(4)Cl(s)`

C

`NH_(4)NO_(3)(s)hArrN_(2)O+2H_(2)O(g)`

D

`MgO(s)+H_(2)(g)hArrMg(s)+H_(2)O(l)`

Text Solution

Verified by Experts

The correct Answer is:
C
`Deltan_(g)=3-0=3`
Since `Deltan_(g)gt0`, there will be increase in entropy change.
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