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Question

For the reaction 2O3(g)3O2(g),H is negative, S and G are respectively:

A
+ve, +ve
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B
+ve, -ve
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C
-ve, +ve
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D
-ve, - ve
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Solution

The correct option is B +ve, -ve
2O3(g)3O2(g);H=ve(given);now,S=+ve
as the moles of gas are increasing.

We also know,
and G= H - TS
from the given values
G =ve - (+ve)
=ve
So, G will be negative for this.

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