The amount of $\mathrm{CO}_{2}$ generated (in $\mathrm{kg}$ ) while completely oxidizing one $\mathrm{kg}$ of $\mathrm{CH}_{4}$ to the end products is

The amount of $\mathrm{CO}_{2}$ generated (in $\mathrm{kg}$ ) while completely oxidizing one $\mathrm{kg}$ of $\mathrm{CH}_{4}$ to the end products is

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