A mixture of 0.2 mole O2 and 0.4 mole N2 gas is enclosed in a vessel of certain volume at 27C and 800 torr. If volume of mixture is doubled at same temperature then determine pressure of mixture and individual gases?
We can use Boyle's Law to solve this problem:
#color(blue)(bar(ul(|color(white)(a/a)p_1V_1= p_2V_2 color(white)(a/a)|)))" "#
#p_2 = p_1 ×V_1/V_2#
In this problem,
Now, we can use a form of Dalton's Law of Partial Pressures:
#color(blue)(bar(ul(|color(white)(a/a)p_i = chi_1P_text(tot)color(white)(a/a)|)))" "#
The partial pressure of a gas
The mole fractions are still the same in the new volume.