Beta Question Bank for Engineering: Chemistry>Chapter 3 - States of Matter: Gases and Liquids>EXERCISE-1>Q 35

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${SO}_{2}$ at $STP$ contained in a flask was replaced by $O_{2}$ under identical conditions of pressure, temperature and volume. Then, the weight of $O_{2}$ will be ____ of ${SO}_{2}$ .

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Important Questions on States of Matter: Gases and Liquids

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Beta Question Bank for Engineering: Chemistry>Chapter 3 - States of Matter: Gases and Liquids>EXERCISE-1>Q 36

Equal weights of methane and hydrogen are mixed in an empty container at

25 ° C

. The fraction of the total pressure exerted by hydrogen is

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Beta Question Bank for Engineering: Chemistry>Chapter 3 - States of Matter: Gases and Liquids>EXERCISE-1>Q 37

A

0.5 {dm}^{3}

flask contains the gas

A

, and a

1 {dm}^{3}

flask contains the gas

B

at the same temperature. If the density of

A = 3 g / {dm}^{3}

and that of

B = 1.5 g / {dm}^{3}

, and the molar mass of

A = 1 / 2

of

B

, the ratio of the pressure exerted by the gases is

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Beta Question Bank for Engineering: Chemistry>Chapter 3 - States of Matter: Gases and Liquids>EXERCISE-1>Q 38

Assuming that the

O_{2}

molecule is spherical with a radius of

2 Å

, the percentage of the volume of the

O_{2}

molecules to the total volume of the gas at

S . T . P .

is

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Beta Question Bank for Engineering: Chemistry>Chapter 3 - States of Matter: Gases and Liquids>EXERCISE-1>Q 39

Temperature at which

r . m . s

speed of

O_{2}

is equal to that of neon at

300 K

is:

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Beta Question Bank for Engineering: Chemistry>Chapter 3 - States of Matter: Gases and Liquids>EXERCISE-1>Q 40

The kinetic energy of

N

molecules of

O_{2}

is

x

Joule

at

- 123 ° C

. Another sample of

O_{2}

at

27 ° C

has a kinetic energy of

2 x

. The latter sample contains _____ molecules of

O_{2}

.

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Beta Question Bank for Engineering: Chemistry>Chapter 3 - States of Matter: Gases and Liquids>EXERCISE-1>Q 41

The average kinetic energy(in joules of) molecules in

8.0 g

of methane at

27 ° C

is :

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Beta Question Bank for Engineering: Chemistry>Chapter 3 - States of Matter: Gases and Liquids>EXERCISE-1>Q 42

20 L

of

{SO}_{2}

diffuses through a porous partition in

60

seconds. Volume of

O_{2}

diffuse under similar conditions in

30

seconds will be :

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Beta Question Bank for Engineering: Chemistry>Chapter 3 - States of Matter: Gases and Liquids>EXERCISE-1>Q 43

Three footballs are respectively filled with nitrogen, hydrogen, and helium. If the leaking of the gas occurs with time from the filling hole, then the ratio of the rate of leaking of gases

(r_{N_{2}} : r_{H_{2}} : r_{He})

from three footballs (in the equal time interval) is: