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Predict which of the following reaction(...

Predict which of the following reaction(s) has a positive entropy change?
`I" " Ag^(+) (aq) + CI^(-) (aq) rarr AgCI (s)`
`I" "NH_(4)CI (s) rarr NH_(3)(g) + HCI (g)`
`III" " 2NH_(3)(g) rarr N_(2)(g)+ 3H_(2)(g)`
`IV " "2NH_(3) rarr N_(2)(g) + 3H_(2)(g)`

A

I and II

B

III

C

II and III

D

II

Text Solution

Verified by Experts

The correct Answer is:
C
In I part, entropy is decreasing as solid is formed
In II and III, entropy is increasing as gaseous moles re increasing
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