1.

the heat of combustion of carbon to CO_(2) is - 393 . 5 kJ // mol . The heat released upon formation of 35.2g of CO_(2) from carbon and oxygen gas is

Answer»

`+ 315 KJ`
`-31 . 5kJ`
`-315 kJ`
`+ 31.5KJ`

Solution :`C+O_(2)toCO_(2), DeltaH=-393.5kJ//mol`
HEAT releaded during the formation of 35.2 G(GIVEN) of
`CO_(2)=-(393.5xx35.2)/44=-315 kJ`


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