hibachi395 hibachi395

08-02-2024
Chemistry

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The heats of combustion of CxHy, carbon and hydrogen are a, b and c cal respectively. The heat of formation of CxHy, will be:
A. −(xb+yc/2−a/2) cal
B. −(xb+yc/2−a) cal
C. (xb−yc/2+a/2) cal
D. (xb−yc/2−a/2) cal

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