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C(s)+O(2)(g)toCO(2)(g)," "DeltaH=-94....

`C(s)+O_(2)(g)toCO_(2)(g)," "DeltaH=-94.3 kcal//mol`
`CO(g)+(1)/(2)O_(2)(g)toCO_(2)(g)," "DeltaH=-67.4 kcal//mol`
`O_(2)(g)to2O(g)," "DeltaH=117.4 kcal//mol`
`CO(g)toC(g)+O(g)," "DeltaH=230.6 kcal//mol`
Calculate `DeltaH` for `C(s)toC(g)` in `kcal//mol`

A

171

B

154

C

117

D

145

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The correct Answer is:
D
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{:(C(s)+O_(2)(g)rarrCO_(2)(g), ,,,,DeltaH= -94.3 kcal//mol),(CO(g)+(1)/(2)O_(2)(g)rarrCO_(2)(g),,,,,DeltaH= -67.4 kcal//mol),(O_(2)(g)rarr2O(g),,,,,DeltaH=117.4 kcal//mol),(CO(g)rarrC(g)+O(g),,,,,DeltaH=230.6 kcal//mol):} Calculate Delta H for C(s)rarrC(g) in kcal//mol .

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