Answer to Question #96874 in Inorganic Chemistry for Neslyn

Question #96874
The minimum amount of air required for the complete combustion of 1L of water gas is 2.8L at NTP. Assuming that 20% excess air is used for the actual composition, calculate the volume of air used at 740 mm pressure and 25°C
1
Expert's answer
2019-10-21T07:16:54-0400

n= 2.8 /22.4 = 0.125 moles of air. 0.125/0.8= 0.15625 moles of air with 20% excess.

pV= nRT.

V= nRT/p= 0.15625 x 8.314 x 298 / 101.325=3.82 L.


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