EASY

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Density of gaseous mixture $A$ and $B$ from percentage volume is given as

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Important Questions on States of Matter: Gaseous and Liquid States

EASY

Chemistry>Physical Chemistry>States of Matter: Gaseous and Liquid States>Characteristic Properties of Gases

The average energy per molecule of a gas at a given temperature,

T

EASY

Chemistry>Physical Chemistry>States of Matter: Gaseous and Liquid States>Characteristic Properties of Gases

The quantity

h v / K_{B}

corresponds to

MEDIUM

Chemistry>Physical Chemistry>States of Matter: Gaseous and Liquid States>Characteristic Properties of Gases

How many times the volume of a diatomic gas should be increased reversibly and adiabatically in order to reduce its RMS velocity to half of its intial value.

MEDIUM

Chemistry>Physical Chemistry>States of Matter: Gaseous and Liquid States>Characteristic Properties of Gases

The speed of the gas molecules contained in a closed vessel at fixed temperature and pressure is the same.

EASY

Chemistry>Physical Chemistry>States of Matter: Gaseous and Liquid States>Characteristic Properties of Gases

A fixed mass of a gas occupies a volume of

150 {cm}^{3}

at a fixed temperature and a pressure of 1 atmosphere. What volume will the gas occupy at that temperature and at a pressure of 1.5 atmosphere?

EASY

Chemistry>Physical Chemistry>States of Matter: Gaseous and Liquid States>Characteristic Properties of Gases

A molecule of

{SO}_{2}

is two times heavier than a

O_{2}

molecule. At

298 K

the average kinetic energy of

{SO}_{2}

molecule is

EASY

Chemistry>Physical Chemistry>States of Matter: Gaseous and Liquid States>Characteristic Properties of Gases

Two flasks

A

and

B

have equal volumes.

A

is maintained at

300 K

and

B

600 K

. Equal masses of

H_{2}

and

{CO}_{2}

are taken in flasks

A

and

B

respectively. Find the ratio of total

K . E

of gases in flask

A

to that of

B

MEDIUM

Chemistry>Physical Chemistry>States of Matter: Gaseous and Liquid States>Characteristic Properties of Gases

Select from the box, the correct gas law related to the given situation.

Boyle's law, Charles law, Avagadro's law

An inflated balloon kept at sunlight bursts after some time.

MEDIUM

Chemistry>Physical Chemistry>States of Matter: Gaseous and Liquid States>Characteristic Properties of Gases

Which of the following statement(s) (are) correct regarding the root-mean-square speed

(U_{r m s})

and average translational kinetic energy

(E_{av})

of a molecule in a gas at equilibrium?

EASY

Chemistry>Physical Chemistry>States of Matter: Gaseous and Liquid States>Characteristic Properties of Gases

Predict the correct order of rate of diffusion of the following molecules.

MEDIUM

Chemistry>Physical Chemistry>States of Matter: Gaseous and Liquid States>Characteristic Properties of Gases

What is the kinetic energy (in

ergs

) of the nitrogen molecule at

- 73 ° C

MEDIUM

Chemistry>Physical Chemistry>States of Matter: Gaseous and Liquid States>Characteristic Properties of Gases

Among copper, invar and iron the linear expansion coefficient of iron is the lowest.

EASY

Chemistry>Physical Chemistry>States of Matter: Gaseous and Liquid States>Characteristic Properties of Gases

Find out the ratio of the volumes occupied by

32 g O

, and

44 g {CO}_{2}

, gases at

27 ° C

temperature and

700 mmHg

pressure. (

C = 12, O = 16

)

MEDIUM

Chemistry>Physical Chemistry>States of Matter: Gaseous and Liquid States>Characteristic Properties of Gases

At STP an ideal gas occupies a volume of

273 {cm}^{3}

. What volume will the gas occupy at

76 cmHg

pressure and at temperature of

273 ° C

HARD

Chemistry>Physical Chemistry>States of Matter: Gaseous and Liquid States>Characteristic Properties of Gases

Air separated from the atmosphere by a column of mercury of length

h = 15 cm

is present in a narrow cylindrical soldered at one end. When the tube is placed horizontally the air occupies a volume

V_{1} = 250 {mm}^{3}

. When it is set vertically with its open end upwards the volume of the air is

V_{2} = 200 {mm}^{3}

. The atmospheric pressure during the experiment is

x cm of Hg

. Find

x

EASY

Chemistry>Physical Chemistry>States of Matter: Gaseous and Liquid States>Characteristic Properties of Gases

At constant volume, for a fixed number of moles of a gas, the pressure of the gas increases with rise of temperature due to

HARD

Chemistry>Physical Chemistry>States of Matter: Gaseous and Liquid States>Characteristic Properties of Gases

32 g

of oxygen and

3 g

of hydrogen are mixed and kept in a vessel of

760 mm

pressure and

0 ° C

. The total volume occupied by the mixture will be nearly

HARD

Chemistry>Physical Chemistry>States of Matter: Gaseous and Liquid States>Characteristic Properties of Gases

The volume occupied by

22.4 g

of a gas (vapour density

= 11.2

) at

NTP

MEDIUM

Chemistry>Physical Chemistry>States of Matter: Gaseous and Liquid States>Characteristic Properties of Gases

What would be the height of a barometer column for one standard atmosphere, if water were used instead of mercury?

EASY

Chemistry>Physical Chemistry>States of Matter: Gaseous and Liquid States>Characteristic Properties of Gases

When a capillary tube of diameter

0.8 mm

is dipped in a liquid having a density of

800 kg

m^{- 3},

then the height of the liquid in the capillary tube rises to

4 cm

. The surface tension of the liquid is

Density of gaseous mixture A and B from percentage volume is given as

Important Questions on States of Matter: Gaseous and Liquid States

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Density of gaseous mixture $A$ and $B$ from percentage volume is given as