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

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IMPORTANT

Earn 100

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 $Hg .$ ]

Important Questions on Gaseous State

EASY

KVPY Aptitude Test - Stream SA

IMPORTANT

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:

EASY

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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:

EASY

KVPY Aptitude Test - Stream SA

IMPORTANT

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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IMPORTANT

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 -

EASY

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IMPORTANT

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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IMPORTANT

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

of

H_{2}

and

4 g

of

O_{2}

at any temperature is:

MEDIUM

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IMPORTANT

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:

EASY

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IMPORTANT

Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 4 - Gaseous State>KVPY PROBLEMS (PREVIOUS YEARS)>Q 8

Two balloons,

A

and

B

, containing

0.2

mole and

0.1

mole of helium at room temperature and

2.0 atm

., respectively, are connected. When an equilibrium is established, the final pressure of

He

in the system is: