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The values of DeltaH and DeltaS for the ...

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

A

710 K

B

910 K

C

1110 K

D

510 K

Text Solution

Verified by Experts

The correct Answer is:
C
Given , `DeltaH=170 KJ =170xx10^(3)` J
`DeltaS=170 JK^(-1), T=?`
`DeltaG=DeltaH-TDeltaS`
For spontaneous reaction
`DeltaG lt 0 implies 0 lt 170 xx 10^(3) -Txx170, T gt 1000`
`therefore T=1110` K
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