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Question 1.2.1: A gas used in internal combustion engine had the following c......

A gas used in internal combustion engine had the following composition by volume : H_2 = 45\%; CH_4 = 36\%; CO = 15\%; N_2 = 4\%. Find the volume of air required for the combustion of 1 m³ of the gas.

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\begin{aligned}\text{Therefore volume of air required per m³ of the gas} &= 1.020  m^3 ×\frac{100}{21}\\& = 4.857  m^3\end{aligned}
Constituent Amount in 1m³ of the fuel Combustion reaction
Volume of \bf O_2 required(m³)
H_2 0.45 m³ H_2 +\frac{1}{2}  O_2 \rightarrow H_2O 45 ×0.5 =0.225
CH_4 0.36 m³ CH_4 +2  O_2 \rightarrow CO_2 +2H_2O 0.36 × 2 = 0.72
CO 0.15 m³ CO +\frac{1}{2}  O_2 \rightarrow CO_2
0.15 × 0.5 = 0.075
N_2 0.04 m³
Total = 1.020

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