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The values of DeltaH and DeltaS for the ...

The values of `DeltaH` and `DeltaS` for the reacrtion,
`C_("graphite")+CO_(2)(g)rarr2CO(g)`
are `170KJ` and `170JJK^(-)` respectively. This reaction will be spontaneous at

A

`510K`

B

`710K`

C

`910K`

D

`1110K`

Text Solution

Verified by Experts

The correct Answer is:
A
`DeltaH=170KJ=170xx10^(3)J`
`DeltaS=170JK^(-1),T=`?
`DeltaG=DeltaH-TDeltaS`
For spontaneous reaction, `DeltaGlt0`
`implies 0lt170xx10^(3)-Txx170,Tgt1000`
`:. T=1110K`
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