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The standard heat of formation of CH(4),...

The standard heat of formation of `CH_(4),CO_(2) and H_(2)O(l)` (l) are `-76.2`, `-394.8` and `-285.82 kJ mol^(-1)` , respectively. Heat of vaporizatron of Water is `44 kJ mol^(-1)`. Calculate the amount of heat evolved when 22.4 L of `CH_(4)` kept under normal conditions, is oxidized into its gaseous products

A

`802 kJ`

B

`878.4 kJ`

C

`802 kJ`

D

`788.4 kJ`

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