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Based on the following thermochemical eq...

Based on the following thermochemical equations
`H_(2)O(g)+C(s)rarrCO(g)+H_(2)(g),DeltaH=131KJ`
`CO(g)+1//2O_(2)(g)rarrCO_(2)(g),DeltaH=-282KJ`
`H_(2)(g)+1//2_(2)(g)rarrH_(2)O(g),DeltaH=-242KJ`
`C(s)+O_(2)(g)rarrCO_(2)(g),DeltaH=XKJ`
The value of `X` will be

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