A vessel of volume 0.02 m3 contains a mixture of hydrogen and helium at 20c and 2 atmospheric pressure. The mass of mixture is 5 gms. Find the ratio of mass of hydrogen to that of helium in the mixture.
Answers
The ratio of mass of hydrogen to that of helium in the mixture is 1 : 2
Explanation:
From ideal gas equation PV=nRT,
Here, assume mass of helium in mixture is x, then mass of hydrogen is (5-x) So, 2 × 10^5 × 0.02 = ((5−x) / 2 + x / 4) 8.314 × 293
x = 3.43 and 5 − x = 1.57
So ratio of hydrogen to helium is 1 : 2
Then x+ y = 3
Thus the ratio of mass of hydrogen to that of helium in the mixture is 1 : 2
The ratio of mass of hydrogen to that of helium in the mixture is 1:2.
Explanation:
According to the ideal gas equation, PV = nRT
Let us assume that mass of helium the given mixture is x and mass of hydrogen is (5 - x).
Putting these values into the above ideal gas equation as follows.
PV = nRT
x = 3.43
and, (5 - x) = (5 - 3.43)
= 1.57
This means that the ratio of hydrogen to helium is 1:2.
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