Kinetic Theory of Gases Test

Result

Kinetic Theory of Gases Test - 19

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Weekly Quiz Competition

Question 1
4 / -1

The volume of a gas at 20°C is 200 ml. If the temperature is reduced to –20°C at constant pressure, its volume will be

A
172.6 ml

B
17.26 ml

C
192.7 ml

D
19.27 ml

Solution
Question 2
4 / -1

A
0.32

B
0.45

C
2.24

D
3.16

Solution
Question 3
4 / -1

The vapour of a substance behaves as a gas

A
Below critical temperature

B
Above critical temperature

C
At 100°C

D
At 1000°C
Question 4
4 / -1

If the volume of the gas containing n number of molecules is V, then the pressure will decrease due to force of intermolecular attraction in the proportion

A

B

C

D

Solution
Question 5
4 / -1

What is the mass of 22.4 atmospheric pressure 2 litres of nitrogen at and 273 K

A
28 g

B
56 g

C
4 × 22.4 g

D
None of these

Solution
Question 6
4 / -1

Which of the following statements about kinetic theory of gases is wrong?

A
The molecules of a gas are in continuous random motion

B
The molecules continuously undergo inelastic collisions

C
The molecules do not interact with each other except during collisions

D
The collisions amongst the molecules are of short duration
Question 7
4 / -1

A person blows into open-end of a long pipe. As a result, a high-pressure pulse of air travels down the pipe. When this pulse reaches the other end of the pipe,

A
a high-pressure pulse starts travelling up the pipe, if the other end of the pipe is open

B
a low-pressure pulse starts travelling up the pipe, if the other end of the pipe is open

C
a low-pressure pulse starts travelling up the pipe, if the other end of the pipe is closed

D
a high-pressure pulse starts travelling up the pipe, if the other end of the pipe is closed
Question 8
4 / -1

Air is pumped into an automobile tube upto a pressure of 200 kpa in the morning when the air temperature is 22°C. During the day, temperature rises to 42°C and the tube expands by 2%. The pressure of the air in the tube at this temperature, will be approximately

A
212 kPa

B
209 kPa

C
206 kPa

D
200 kPa

Solution
Question 9
4 / -1

At NTP, sample of equal volume of chlorine and oxygen is taken. Now, ratio of no. of molecules is

A
1 : 1

B
32 : 27

C
2 : 1

D
16 : 14
Question 10
4 / -1

A gas at the temperature 250 K is contained in a closed vessel. If the gas is heated through 1 K, then the percentage increase in its pressure will be

A
0.4%

B
0.2%

C
0.1%

D
0.8%

Solution