Dear student

Assume that 100 g each of hydrogen, oxygen and methane are present.

The volume of gases is directly proportional to the number of moles of gases.

The molar mass of hydrogen, oxygen and methane are 2 g/mol, 32 g/mol and 16 g/mol respectively.

The number of moles of hydrogen, oxygen and methane are

2/ 100 ,

32/ 100

and

16 1/100

respectively.

The ratio of the volumes of hydrogen, oxygen and methane will be

2 1/100 : 32 /100 : 16 1/100 =

1

1

:

16

1

:

8

1

=16:1:2