
(a)
Interpretation:The total pressure in the vessel needs to be calculated.
Concept Introduction: Pressure, Volume, Temperature and mole can be related by Ideal gas Equation as:
Where, P = pressure
V = volume
n = mole
R = universal gas constant
T = temperature
(b)
Interpretation: The mole fraction and partial pressure of each gas needs to be determined.
Concept Introduction:
Mole Fraction: It is ratio of mole of component and total moles. It is given as:
Dalton’s Law of Partial pressure:It states that total pressure of mixture of gases is sum of their partial pressure.
Also, it relates partial pressure of gases with total pressure as:
Where, Pgas = partial pressure of gas
Ptotal = total pressure of mixture

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Chapter 1 Solutions
Physical Chemistry
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