The force on the wall is actually the pressure exerted by gas molecules
Higher the pressure more the force exerted on the walls of container
The pressure depends upon the number of molecules of a gas
In a mixture of gas the pressure depends upon the mole fraction of the gas
As given the mole fraction of He is more than that of H2 therefore He will exert more pressure on the wall
The ratio of impact will be
H2 / He = 2/3 / 1/3 = 2: 1
Answer:
1/2
Explanation:
By Raoult's Law, the pressure of a gas in a gas mixture, is its mole fraction multiplied by the total pressure of the gas mixture. Thus, calling Pt as the total pressure:
[tex]P_{H_{2}} = \frac{1}{3} *Pt[/tex]
[tex]P_{He} = \frac{2}{3} *Pt[/tex]
The pressure is the force divided by the area, thus:
[tex]\frac{F_{H_{2}}}{A} = \frac{1}{3} *Pt[/tex]
[tex]\frac{F_{He}}{A} = \frac{2}{3}*Pt[/tex]
Because the area is the same:
[tex]\frac{F_{H_{2}}}{F_{He}} = \frac{1/3}{2/3}[/tex]
[tex]\frac{F_{H_{2}}}{F_{He}} = \frac{1}{2}[/tex]
