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The density of a mixture of $O_{2}$ and $N_{2}$ at NTP is $1.3 g {litre}^{- 1}$ . Calculate the partial pressure of $O_{2}$ .

Important Questions on Gaseous State

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Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 4 - Gaseous State>EXERCISE>Q 50

Given a one meter long glass tube closed at one end having a uniform cross-section containing a mercury column of $10 cm$ length, at a distance of $39 cm$ from the closed end. By what distance would this column move down, if the tube is held vertically with the open end downwards. [Take atmospheric pressure to be $78 cm$ of $Hg .$ ]

Question Image

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Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 4 - Gaseous State>KVPY PROBLEMS (PREVIOUS YEARS)>Q 1

The plot that is not valid for an ideal gas where

P

is the pressure and

V

is the volume of the gas is:

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KVPY Aptitude Test - Stream SA

IMPORTANT

Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 4 - Gaseous State>KVPY PROBLEMS (PREVIOUS YEARS)>Q 2

One mole, each of the two gases

X

and

Y

, are stored separately in two cylinders at

25 ° C

at pressures

1 atm

and

2 atm

, respectively. The difference in the compressibilities of the two gases,

(k_{x} - k_{y})

, is:

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KVPY Aptitude Test - Stream SA

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Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 4 - Gaseous State>KVPY PROBLEMS (PREVIOUS YEARS)>Q 3

An ideal gas is subjected to a cyclic change as shown in the $P - V$ diagram below:

Question Image

The step in which the gas will cool down is along:

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KVPY Aptitude Test - Stream SA

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Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 4 - Gaseous State>KVPY PROBLEMS (PREVIOUS YEARS)>Q 4

For an ideal gas, Boyle's law is best described by -

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Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 4 - Gaseous State>KVPY PROBLEMS (PREVIOUS YEARS)>Q 5

The gas that has the slowest rate of diffusion among

O_{2}, H_{2}, {CO}_{2}

and

{CH}_{4}

is:

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Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 4 - Gaseous State>KVPY PROBLEMS (PREVIOUS YEARS)>Q 6

Assuming ideal behaviour, the ratio of the kinetic energies of

3 g

H_{2}

and

4 g

O_{2}

at any temperature is:

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KVPY Aptitude Test - Stream SA

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Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 4 - Gaseous State>KVPY PROBLEMS (PREVIOUS YEARS)>Q 7

Consider two sealed jars of equal volume. One contains

2 g

of hydrogen at

200 K

and the other contains

28 g

of nitrogen at

400 K

. The gases in the two jars will have:

The density of a mixture of O2 and N2 at NTP is 1.3 g litre-1. Calculate the partial pressure of O2.

Important Questions on Gaseous State

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The density of a mixture of $O_{2}$ and $N_{2}$ at NTP is $1.3 g {litre}^{- 1}$ . Calculate the partial pressure of $O_{2}$ .