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{:(C(s)+O(2)(g)rarrCO(2)(g), ,,,,DeltaH=...

`{:(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`.

A

171

B

154

C

117

D

145

Text Solution

Verified by Experts

The correct Answer is:
D
`C(s)rarrC(g)" "`can be obtained as, `Delta H=DeltaH_(1)-DeltaH_(2)-(1)/(2)DeltaH_(3)+DeltaH_(4)`
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