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Consider the following reactions: `C(s)+O_(2)(g)toCO_(2)(g)+x " kJ"` `CO(g)+(1)/(2)O_(2)(g)toCO_(2)(g)+y" kJ"` The heat formation of CO(g) is :A. `-(X+Y)kJ//mol`B. `(X-Y)kJ//mol`C. `(Y-X)kJ//mol`D. `(Y+X)kJ//mol` |
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Answer» Correct Answer - C `T.R:C_(s)+(1)/(2)O_(2(g))toCO_((g)),DeltaH_(r)=DeltaH_(f)` `T.R=(I)+(II)rev` `=(-X)+(+Y)` `DeltaH_(r)=Y-X` |
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