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Based on the following thermochemical e...

Based on the following thermochemical equation
`H_(2)O(g)+C(s)=CO(g)+H_(2)(g),DeltaH=131kJ`,
`CO(g)+1//2O_(2)(g)=CO_(2)(g),DeltaH=-282 kJ`
`H_(2)(g)+1//2O_(2)(g)=H_(2)O(g),DeltaH=-242kJ`
`C(s)+O_(2)(g)=CO_(2)(g),DeltaH=-xkJ`
the value of x will be

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