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A reaction, \(A+B \longrightarrow C+D+q\) is found to have a positive entropy change. The reaction will be
(i) possible at high temperature
(ii) possible only at low temperature
(iii) not possible at any temperature
(iv) possible at any temperature
(i) possible at high temperature
(ii) possible only at low temperature
(iii) not possible at any temperature
(iv) possible at any temperature
Solution:
1060 Upvotes
Verified Answer
Here, \(\Delta \mathrm{H}=-\mathrm{ve}\) and \(\Delta \mathrm{S}=+\mathrm{ve}\). \(\Delta \mathrm{G}=\Delta \mathrm{H}-\mathrm{T} \Delta \mathrm{S}\). For the reaction to be spontaneous, \(\Delta \mathrm{G}\) should be-ve which will be so at any temperature, i.e., option (iv) is correct.
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