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Plots of log vs.(1)/(T) plots shows an i...

Plots of `log vs.(1)/(T)` plots shows an intercept of `2` on `y-"axis"` with a slope of `45^(@)` for the studied reaction. Assuming that `DeltaH^(@)` and `DeltaS^(@)` as temperature independent, select the correct statement (`s`).

A

`DeltaG^(@)=-2.75 kcal`

B

`DeltaS^(@)=4.606 kcal`

C

`H^(@)=-4.606 cal`

D

`K=100.8`

Text Solution

Verified by Experts

(a,c,d)
`DeltaG^(@)=-2.303RT log K`
`DeltaH^(@)-TDeltaS^(@)=-2.303RT log K`
`2.303 log K=-(DeltaH^(@))/(R )+(DeltaS^(@))/(R )`
`Slope= -(DeltaH^(@))/(2.303R)=tan45^(@)`
`:. DeltaH^(@)=-2.303xx2xx1=-4.606 cal`
Intercept`=(DeltaS^(@))/(2.303R)=2`
`:. DeltaS^(@)=2.303xx2xx2=9.212 cal`
`:. DeltaG^(@)=DeltaH^(@)-TDeltaS^(@)`
`=-4.606-298xx9.212=-2.75 kcal`
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