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For the reaction Ag(2)O(s) to 2Ag(s)+1/2...

For the reaction `Ag_(2)O(s) to 2Ag(s)+1/2 O_(2)(g)` the value of `triangleH =30.56" KJ mol"^(-1) and triangleS=66 JK^(-1)" mol"^(-1)`. The temperature at which the free energy change for the reaction will be zero is

A

`T gt 463.4 K`

B

`T gt 190.25^(@) C`

C

`T lt 190.25^(@) C`

D

`T lt 463.4 K`

Text Solution

Verified by Experts

The correct Answer is:
A, B
The given reaction will be spontaneous when `DeltaG` would be negative when `DeltaH-TDeltaS` is negative . That is ,
`DeltaH-TDeltaS lt 0`
or `TDeltaS gt DeltaH`
or `T gt (DeltaH)/(DeltaS)`
or `T gt (61170 J "mol"^(-1))/(132 JK^(-1) "mol"^(-1))`
or `T gt 463.4 K`
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RESONANCE ENGLISH-THERMODYNAMICS-exercise-3 part-2 Advanced level Solutions
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