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The heat of formation of carbon dioxide ...

The heat of formation of carbon dioxide from graphite at `15^(@)C` and constant volume is `97400 cal`, and that of carbon monoxide under the same conditions is `25400 cal`. What heat should be evolved when `100 ` litre of carbon monoxide measured at `N.T.P. ` is burnt in an excess of oxygen, both reactants and products being at `15^(@)C` ?

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The correct Answer is:
`-321408cal;`
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