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Calculate heat of formation of KOH(s) us...

Calculate heat of formation of `KOH(s)` using the following equations
`K(s) +H_(2)O(l) +aq rarr KOH(aq)+1//2 H_(2)(g),DeltaH =- 48.0 kcal …(i)`
`H_(2)(g) +1//2O_(2)(g) rarr H_(2)O(l),DeltaH =- 68.4 kcal …(ii)`
`KOH(s) +(aq) rarr KOH(aq),DeltaH =- 14.0 kcal ....(iii)`

A

`+102.83`

B

`+130.85`

C

`-102.83`

D

`-130.85`

Text Solution

Verified by Experts

The correct Answer is:
C
`K_((s))+(1)/(2)O_(2)+(1)/(2)H_(2)rarrKOH_((S))overset(H_(2)O)rarrKOH_((aq))`
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