Question

A mixture of C2h2 and C3h8 occupies 80 ml at a certain certain temperature and
pressure. The mixture was completely burnt due to which 230 ml of CO2 is obtained at same temperature and pressure. The fraction of C2h2, in mixture is :​

Answer 1

Answer:

Let pressure of C

2

H

2

=x

pressure of C

3

H

8

=80−x

C

2

H

2

+5/2O

2

→2CO

2

+H

2

O

C

3

H

8

+5O

2

→3CO

2

+4H

2

O

Pressure of CO

2

=2x+3(80−x)=230

x=10

Fraction 0f C

2

H

2

=10/80=0.125