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The heat of combustion of carbon is 394 ...

The heat of combustion of carbon is `394 kJ`. The heat evolved in combustion of `6.023xx10^(22)` atoms of carbon is

A

`3940KJ`

B

`394.0KJ`

C

`39.4KJ`

D

`0.394KJ`

Text Solution

Verified by Experts

The correct Answer is:
A
Heat of combusion `= (394)/(6.023xx10^(23)) xx 6.023xx10^(22)`
`= 39.4 kJ`
[Heat of combusion is for 1 mole `= 6.023xx10^(23)`]
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