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 & Partial Pressure in Terms of Mole Fraction etc.

Important Questions on Dalton's Law of Partial Pressure

EASY
IMPORTANT

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:

EASY
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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

EASY
IMPORTANT

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

MEDIUM
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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

MEDIUM
IMPORTANT

Which one is not correct mathematical equation for Dalton's Law of partial pressure? Here P= total pressure of gaseous mixture

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pi=Xi×PTotal 

The above expression is related to 

MEDIUM
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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

MEDIUM
IMPORTANT

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        

MEDIUM
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Oxygen and cyclopropane at partial pressure of 570 torr and 170 torr respectively are mixed in a gas cylinder. The ratio of the number of moles of cyclopropane to the number of moles of oxygen is:

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

MEDIUM
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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 :

HARD
IMPORTANT

16 g each of H2He and O2 are present in a container exerting 10 atm pressure at T(K). The pressure in atm exerted by16 g each of He and O2 in the second container of same volume and temperature is

MEDIUM
IMPORTANT

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.

MEDIUM
IMPORTANT

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

EASY
IMPORTANT

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]

EASY
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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 :

MEDIUM
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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

MEDIUM
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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:

MEDIUM
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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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IMPORTANT

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: