12ml of a mixture of Methane and Ethane on complete combustion give 1

1.	12ml of a mixture of Methane and Ethane on complete combustion give 19 ml of carbon dioxide and 31 ml of water vapour under a given conditions of temperature and pressure the mixture contains
Answer» let the volume of methane be a and Ethane be b. CH4 + 2O2 ---> CO2 + 2H2O a 2a a 2a C2H4 + 3O2 ------> 2CO2 + 2H2O b 3b 2b 2b now a+b = 12 and a+2b = 19 , so, a+2b-(a+b) = 19-12 = 7=> b = 7ml , and a = 5 ml volume of methane = 5 ml and ethane = 7 ml

12ml of a mixture of Methane and Ethane on complete combustion give 19 ml of carbon dioxide and 31 ml of water vapour under a given conditions of temperature and pressure the mixture contains

Answer»

let the volume of methane be a and Ethane be b.

CH4 + 2O2 ---> CO2 + 2H2O a 2a a 2a

C2H4 + 3O2 ------> 2CO2 + 2H2O b 3b 2b 2b

now a+b = 12

and a+2b = 19 ,

so, a+2b-(a+b) = 19-12 = 7=> b = 7ml , and a = 5 ml

volume of methane = 5 ml and ethane = 7 ml