Question

# The reaction 4N2O + CH4 $\stackrel{}{\to }$ CO2 + 2H2O + 4N2 takes place in the gaseous state. If the volumes of all the gases are measured at the same temperature, and pressure, calculate the volume of dinitrogen oxide (N2O), required to give 150 cm3 of steam.

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Solution

## According to the balanced chemical equation, under same temperature and pressure conditions, four units of volume of dinitrogen oxide is required to form two units of volume of steam. Volume of dinitrogen oxide required to produce 150 cm3 = $\frac{2}{1}×150{\mathrm{cm}}^{3}$ = 300 cm3

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