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Predict which of the following reaction(...

Predict which of the following reaction(s) has a negative entropy change?
`I. CH_(4)(g) +2O_(2)(g)rarrCO_(2)(g)+2H_(2)O(l)`
`II. NH_(3)(g)+HCl(g)rarrNH_(4)Cl(s)`
`III. 2KClO_(4)(s) rarr2KClO_(3)(s)+O_(2)(g)`

A

III

B

II

C

I and II

D

I

Text Solution

Verified by Experts

The correct Answer is:
C
`Deltan_(g)=-ve," "DeltaS=-ve`
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