Kinetic Theory of Gases Test

Result

Kinetic Theory of Gases Test - 33

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Weekly Quiz Competition

Question 1
4 / -1

Vapor is injected at a uniform rate in a closed which was initially evacuated. The pressure in the vessel

A
Increases continuously

B
Decreases continuously

C
First increases and then decreases

D
First increases and then becomes constant
Question 2
4 / -1

The average translational kinetic energy of a hydrogen gas molecules at NTP will be
[Boltzmann\'s constant k_B = 1.38 × 10^–23 J/K]

A
0.186 × 10^–20 J

B
0.372 × 10^–20 J

C
0.56 × 10^–20 J

D
5.6 × 10^–20 J

Solution
Question 3
4 / -1

According to the kinetic theory of gases, the temperature of a gas is a measure of average

A
Velocities of its molecules

B
Linear momentum of its molecules

C
Kinetic energy of its molecules

D
Angular momentum of its molecules

Solution
Question 4
4 / -1

Mean kinetic energy per degree of freedom of gas molecules is

A

B

C

D

Solution
Question 5
4 / -1

The temperature at which the average translational kinetic energy of a molecule is equal to the energy gained by an electron in accelerating from rest through a potential difference of 1 volt is

A
4.6 × 10³ K

B
11.6 × 10³ K

C
23.2 × 10³ K

D
7.7 × 10³ K

Solution
Question 6
4 / -1

The kinetic energy of one g-mole of a gas at normal temperature and pressure is (R = 8.31 J/mol–K)

A
0.56 × 10⁴ J

B
1.3 × 10² J

C
2.7 × 10² J

D
3.4 × 10³ J

Solution
Question 7
4 / -1

A monoatomic gas is kept at room temperature 300 K. Calculate the average kinetic energy of gas molecule (Use k = 1.38 × 10^–23 MKS units)

A
0.138 eV

B
0.062 eV

C
0.039 eV

D
0.013 eV

Solution
Question 8
4 / -1

A
1

B
2

C
1/3

D
2/3

Solution
Question 9
4 / -1

A gas is filled in a cylinder, its temperature is increased by 20% on kelvin scale and volume is reduced by 10%. How much percentage of the gas will leak out

A
30%

B
40%

C
15%

D
25%

Solution
Question 10
4 / -1

1/2 mole of helium gas is contained in a container at S.T.P. The heat energy needed to double the pressure of the gas, keeping the volume constant (specific heat of the gas = 3 J gm^–1K^–1) is

A
3276 J

B
1638 J

C
819 J

D
409.5 J

Solution