Enthalpy of combustion of carbon to `CO_(2)` is `-393.5 kJ mol^(-1)`. Calculate the heat released upon formation of `35.2 g` of `CO_(2)` from carbon and dioxygen gas.A. `-630kJ`B. `-3.15kJ`C. `-315kJ`D. `+315kJ`

Enthalpy of combustion of carbon to `CO_(2)` is `-393.5 kJ mol^(-1)`.

1.	Enthalpy of combustion of carbon to `CO_(2)` is `-393.5 kJ mol^(-1)`. Calculate the heat released upon formation of `35.2 g` of `CO_(2)` from carbon and dioxygen gas.A. `-630kJ`B. `-3.15kJ`C. `-315kJ`D. `+315kJ`
Answer» Correct Answer - C `C+O_(2)toCO_(2),DeltaH=-393.3kJ//mol` 44g `CO_(2)` then heat evolved is 393.5 kJ when ltBrgt 35.2g then heat evolved is `(393.5)/(44)xx35.2` =-315 kJ

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Enthalpy of combustion of carbon to `CO_(2)` is `-393.5 kJ mol^(-1)`. Calculate the heat released upon formation of `35.2 g` of `CO_(2)` from carbon and dioxygen gas.A. `-630kJ`B. `-3.15kJ`C. `-315kJ`D. `+315kJ`

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