The standard heat of formation of `CH_(4)(g), CO_(2)(g)` and `H_(2)O(g)` are `-76.2, -394.8` and `-241.6 kJ mol^(-1)` respectively. Calculate the amount of heat evolved by burning `1 m^(3)` of methane measured at N.T.P.

Explanation

To calculate the amount of heat evolved by burning 1 m³ of methane (CH₄) at normal temperature and pressure (NTP), we follow these steps:

### Step 1: Write the balanced combustion reaction for methane.
The combustion of methane can be represented by the following equation:
\[ \text{CH}_4(g) + 2 \text{O}_2(g) \rightarrow \text{CO}_2(g) + 2 \text{H}_2\text{O}(g) \]

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