EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 9 - States of Matter : Gases and Liquids>AP EAPCET - 20 Aug 2021 Forenoon>Q 5

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IMPORTANT

Earn 100

Which among the following statements is/are incorrect regarding real gases?
(i) Their compressibility factor is never equal to unity $(Z \neq 1)$ .
(ii) The deviations from ideal behavior are less at low pressures and high temperatures.
(iii) Intermolecular forces among gas molecules are equal to zero.
(iv) The obey Van der Waals equation, $PV = nRT$ .

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Important Questions on States of Matter : Gases and Liquids

EASY

AP EAPCET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 9 - States of Matter : Gases and Liquids>AP EAPCET 2020 (Sep-23 Shift-1)>Q 6

The pressure exerted by a mixture of

3.2 g

of methane and

4.4 g

of

{CO}_{2}

contained in a

9 {dm}^{3}

flask at

27 ° C

is

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AP EAPCET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 9 - States of Matter : Gases and Liquids>AP EAPCET 2021 (19-Aug Forenoon)>Q 7

The density of an ideal gas can be given by where

P, V, M, T

and

R

respectively denote pressure, volume, molar-mass, temperature and universal gas constant.

MEDIUM

AP EAPCET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 9 - States of Matter : Gases and Liquids>AP EAPCET 2021 (19-Aug Afternoon)>Q 8

Among the following, the maximum deviation from ideal gas behavior is expected from

EASY

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 9 - States of Matter : Gases and Liquids>AP EAPCET 2020 (Sep-23 Shift-1)>Q 9

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

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 9 - States of Matter : Gases and Liquids>AP EAPCET 2019 (21-Apr Shift-2)>Q 10

If the kinetic energy and

RMS

speed of a gas at a certain temperature are

4.0 kJ {mol}^{- 1}

and

5.0 \times 10^{4} cm s^{- 1}

, respectively. The molecular weight of the gas is

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 9 - States of Matter : Gases and Liquids>AP EAPCET 2021 (19-Aug Afternoon)>Q 11

Two flasks

A

and

B

have equal volumes.

A

is maintained at

300 K

and

B

at

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

.

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 9 - States of Matter : Gases and Liquids>AP EAPCET - 20 Aug 2021 Afternoon>Q 12

When the temperature of a gas is increased from

30 ° C

to

930 ° C

, the root mean square speed of the gas would

EASY

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 9 - States of Matter : Gases and Liquids>AP EAPCET 2018 (25-APR Shift-1)>Q 13

At same temperature and pressure, the rate of diffusion of gas

' X'

is

3 \sqrt{3}

times that of a gaseous hydrocarbon of molar mass

54 g {mol}^{- 1}

. The molar mass of

X

in

g {mol}^{- 1}

is