Question

Equal volume of CH4 and O2 are mixed in an empty container at 25°C. The fraction of total pressure exerted by O2 is:
a)1/2
b)1/3
c)8/15
d)3/2​

Answer 1

Answer:partial pressure=Mole fraction×total pressure

(Equal volume means they contain equal masses)

Explanation:the total pressure exerted by oxygen means=partial pressure/total pressure=Mole fraction of oxygen

==Moles of oxygen÷(moles of oxygen+Mole Of CH4)

=====1/32÷(1/32+1/16)====1/32÷(2+1/32)===1/32÷3/32====1/3

Answer 2

Explanation:

1/3 is the correct answer❣️❣️❣️❣️❣️❣️❣️