Kinetic Theory of Gases Test

Result

Kinetic Theory of Gases Test - 32

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Weekly Quiz Competition

Question 1
4 / -1

Three perfect gases at absolute temperature T₁, T₂ and T₃ are mixed. The masses of molecules are m₁, m₂ and m₃ and the number of molecules are n₁, n₂ and n₃ respectively. Assuming no loss of energy, the final

A

B

C

D
Question 2
4 / -1

If temperature of gas increases from 27°C to 927°C the K.E. will be

A
Double

B
Half

C
One fourth

D
Four times

Solution
Question 3
4 / -1

Vessel A is filled with hydrogen while vessel B, whose volume is twice that of A, is filled with the same mass of oxygen at the same temperature. The ratio of the mean kinetic energies of hydrogen and oxygen is

A
16 : 1

B
1 : 8

C
8 : 1

D
1 : 1

Solution
Question 4
4 / -1

A

B

C

D

Solution
Question 5
4 / -1

The temperature at which protons in proton gas would have enough energy to overcome Coulomb barrier of 4.14 × 10^–14 J is
(Boltzman constant = 1.38 × 10^–23 JK^–1)

A
2 × 10⁹ K

B
10⁹ K

C
6 × 10⁹ K

D
3 × 10⁹ K

Solution
Question 6
4 / -1

An ideal gas is filled in a vessel, then

A
If it is placed inside a moving train, its temperature increases

B
Its centre of mass moves randomly

C
Its temperature remains constant in a moving car

D
None of the above

Solution
Question 7
4 / -1

If r.m.s. velocity of gas is V_rms = 1840 m/s and its density ρ = 8.99 × 10^–2 kg/m³, the pressure of the gas will be

A
1.01 N/m²

B
1.01 × 10³ N/m²

C
1.01 × 10⁵ N/m²

D
1.01 × 10⁷ N/m²

Solution
Question 8
4 / -1

A

B

C

D

Solution
Question 9
4 / -1

On colliding in a closed container the gas molecules

A
Transfer momentum to the walls

B
Momentum becomes zero

C
Move in opposite directions

D
Perform Brownian motion
Question 10
4 / -1

The capacity of a vessel is 3 litres. It contains 6g oxygen, 8g nitrogen and 5g CO₂ mixture at 27°C. If R = 8.31 J/mole × kelvin, then the pressure in the vessel in N/m² will be (approx.)

A
5 × 10⁵

B
5 × 10⁴

C
10⁶

D
10⁵

Solution