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Calculate the temperature above which th...

Calculate the temperature above which the reaction of lead oxide to lead in the following reaction become spontaneous.
`PbO(s) + C(s) rarr Pb(s) + CO(g)`
Given `Delta H = 108.4 kJ mol^(-1), Delta S = 190 JK^(-1) mol^(-1)`

Text Solution

Verified by Experts

`DeltaG = DeltaH - T DeltaS = 0`
or `T = (DeltaH)/(DeltaS) = (108.4)/(190xx10^(-3) = 570.5K`
Reaction will be spontaneous at temperature higher than `570.5K`,
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