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The variation of lnKc vs. (l)/(T) gives ...

The variation of lnKc vs. `(l)/(T)` gives straight line having an angle of `45^(@)` . The value of heat of reaction in Cal is _____

Text Solution

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The correct Answer is:
2
In `Kc=A.e^(-(DeltaH)/(RT))`
In `Kc=((-DeltaH)/(R))(1)/(T)` + In A
for exothermic `(DeltaH)/(R)=tan 45^(@)`
`DeltaH = R=2cal`
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