Kinetic Theory of Gases Test

Result

Kinetic Theory of Gases Test - 71

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Weekly Quiz Competition

Question 1
4 / -1

Air is filled at 60°C in a vessel of open mouth. The vesselis heated to a temperature T so that 1/4th part of air escapes. Assuming the volume of the vessel remaining constant, the value of T is

A
80°C

B
444°C

C
333°C

D
171°C

Solution
Question 2
4 / -1

Mean free path of gas molecules of constant temperature is inversely proportional to

A
P

B
V

C
m

D
n (number density)
Question 3
4 / -1

Volume, pressure and temperature of an ideal gas are V, P and T respectively. If mass of molecule is m, then its density is [ k_B = Boltzmann`s constant]

A

B

C

D

Solution
Question 4
4 / -1

What is the mass of 2 liters of nitrogen at 22.4 atmospheric pressure and 273 K. (R = 8.314 J mol k^–1)

A
14 × 22.4 g

B
56 g

C
28 g

D
None of these

Solution
Question 5
4 / -1

The equation of state for 5 g of oxygen at a pressure P and temperature T, when occupying a volume V, will be

A

B

C

D

Solution
Question 6
4 / -1

A gas at 1 atmosphere and having volume 100 ml is mixed with another gas of equal moles at 0.5 atm and having volume 50 ml in flask of one liter, what is the final pressure?

A
0.125 atm

B
0.75 atm

C
1 atm

D
0.5 atm

Solution
Question 7
4 / -1

A
mass of gas

B
number of moles of gas

C
number of molecules in gas

D
K. E. of gas

Solution
Question 8
4 / -1

Equation of gas in terms of pressure (P), absolute temperature (T) and density (ρ) is

A

B

C

D

Solution
Question 9
4 / -1

0₂ gas is filled in a vessel. If pressure is doubled, temperature becomes four times, how many times its density will become.

A
4

B
1/4

C
2

D
1/2

Solution
Question 10
4 / -1

If pressure of a gas contained in a closed vessel is increased by 0.4% when heated by 1^o C the initial temperature must be.

A
250^o C

B
25^o C

C
250 K

D
2500 K

Solution