Dalton's Law of Partial Pressure

IMPORTANT

Dalton's Law of Partial Pressure: Overview

This topic covers concepts, such as Dalton's Law of Partial Pressures of Gases, Derivation of Dalton's Law and Partial Pressure in Terms of Mole Fraction.

Important Questions on Dalton's Law of Partial Pressure

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A gaseous mixture was prepared by taking equal mole of   COand N 2 . If the total pressure of the mixture was found 1 atmosphere, the partial pressure of the nitrogen   ( N 2 ) in the mixture is:

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If 500ml of gas A at 400 torrs and 666.6 ml of B at 600 torrs are placed in a 3 liter flask, the pressure of the system will be

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If 500ml of gas A at 400 torr and 666.6 ml of B at 600 torr are placed in a 3 litre flask, the pressure of the system will be

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A gaseous mixture of 2 moles of A, 3 moles of B, 5 moles of C and 10 moles of D is contained in a vessel. Assuming that gases are ideal and the partial pressure of C is 1.5 atm, total pressure is

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A cylinder was filled with gaseous mixture containing CO and N2 (equal masses). The ratio of their partial pressure in cylinder are

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The partial pressure of a dry gas is

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pi=Xi×PTotal 

The above expression is related to 

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A gaseous mixture was prepared by taking equal number of moles of Helium and Neon. If the total pressure of the mixture was found to be 10 atm, the partial pressure of Helium in the mixture is

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A gaseous mixture contains 2 moles of A, 3 moles of B, 5moles of C and 10 moles of D contained in a vessel. If the gases are ideal and the partial pressure of C is 1.5 atm, then the partial pressure of B will be        

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If XM, XP and XV are mole fraction, pressure fraction and volume fraction, respectively, of a gaseous mixture, then

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A gaseous mixture contains three qases A, B and C with a total number of moles of 1.0 and total pressure of 10 atm. The partial pressure of A and B are 3 atm and 1 atm respectively and if C has molecular weight of 2 g/mol. Then, the weight of C present in the mixture will be :

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A mixture of nitrogen and water vapour is admitted to a flask that contains a solid drying agent. Immediately after admission, the pressure in the flask is 760 Torr. After standing for some hours, the pressure reaches a steady value of 745 Torr. Calculate the mole percent of water vapour in the original mixture.

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O2 and SO2 gases are filled in ratio of 1 : 3 by  moles in 6 L (closed container) at temperature of 27°C. The partial pressure of O2 is 1.20 atm, the concentration of SO2 would be

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A mixture of N2 and Ar gases in a cylinder contains 7 g of N2 and 8 g of Ar. If the total pressure of the mixture of the gases in the cylinder is 27 bar, the partial pressure of N2 is:
[Use atomic masses (in g mol1): N=14,Ar=40]

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A mixture of helium and methane gases at 1.4 bar pressure contains 20% by mole of helium. The partial

pressure of helium will be :

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The ratio of molar masses of ideal gases A and B is 1: 4 . If pressure of a mixture containing equal mass of
A and B is P atm, then the partial pressure of B will be

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A mixture of Neon and Ethane at 2 bar pressure contains 20% by mole of Neon. Partial pressure of Ethane will be:

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Equal masses of sulphur dioxide and oxygen are mixed in an empty container at 25°C. The fraction of the total pressure exerted by sulphur dioxide is:

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What will be the partial pressure of H2 in a flask containing 2 g of H2,14 g of N2 and 16 g of O2:

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A gaseous mixture contains 56 g of N2, 44 g CO2 and 16 g of CH4. The total pressure of the mixture is 720 mm Hg. The partial pressure of CH4 is: