Question

A vessel contains methane and oxygen in the mass ratio 1 : 1 . The fraction of the partial pressure of hydrocarbon in the total pressure is
a) 1/3
b) 2/3
c) 1/4
d) 1/2

Answer 1

Answer:

Fins the pressure begin by finding the Mr of methane and oxygen

Mr is the relative molecular mass

Mr of methane

formula is $CH_{4}$

Mr=12*1+1*4

    =12+4

    =16

Mr of oxygen

Mr=16*2

    =32

so the ratio of methane and oxygen

=1:2

According to law of partial pressure of hydrocarbon=mole fraction*total pressure

=2/p

=1/3

so option 1 is correct

Answer 2

Answer:

a)1/3 is correct

hope it help you