For the reaction Then choose the correct statements from the followinga) The process is spontaneous at all temperaturesb) The process is accompained by an increase entropyc) The process is accompained by a decrease in entropyd) The process is accompained by a decrease in enthalpyThe correct statements are
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a
Only a, b and c
b
Only b and d
c
Only c and d
d
Only a, c and d
answer is C.
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Detailed Solution
a)∆H=-ve; gas→solid,∆S=-ve; ∆G=∆H-T∆S; ∆G=-ve -T-; spontaneous at low temperatures; b) ∆S=-ve;