Kinetic Theory of Gases Test

Result

Kinetic Theory of Gases Test - 72

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Weekly Quiz Competition

Question 1
4 / -1

To decrease the volume of a gas by 5% at constant temperature the pressure should be

A
Increased by 5.26%

B
Decreased by 5.26%

C
Decreased by 11%

D
Increased by 11%

Solution
Question 2
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 pressurse will be

A
0.4%

B
0.1 %

C
0.8%

D
0.2%

Solution
Question 3
4 / -1

At O^o C the density of a fixed mass of a gas divided by pressure is x. At 100^oC, the ratio will be

A
x

B

C

D

Solution
Question 4
4 / -1

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

A
172.6 ml

B
17.26 ml

C
19.27 ml

D
192.7 ml

Solution
Question 5
4 / -1

A partition divides a container, having insulated walls, into two compartments, I and II. The same gas is filled the compartments. The ratio of number of molecules in compartments I and II is.

A
6:1

B
1:6

C
4:1

D
1:4

Solution
Question 6
4 / -1

A cylinder contains 10 kg of gas at pressure of 10⁷ N/m². The quantity of gas taken out of the cylinder, if final pressure is 2.5 × 10⁶N/m^–2, will be ______ (temperature of gas is constant)

A
5.2 kg

B
3.7 kg

C
7.5 kg

D
1 kg

Solution
Question 7
4 / -1

The pressure and temperature of an ideal gas in a closed vessel are 720 kPa and 40^o C respectively. If 1/4 th of the gas is released from the vessel and the temperature of the remaning gas is raised to 353^o C, final pressure of the gas is

A
1440 kPa

B
540 kPa

C
1080 kPa

D
720 kPa

Solution
Question 8
4 / -1

Suppose ideal gas equation follows VP³ = constant, Initial temperature and volume of the gas are T and V respectively. If gas expand to 27 V, then temperature will become

A
9 T

B
27 T

C
T/9

D
T

Solution
Question 9
4 / -1

Air is filled in a bottle at atmospheric pressure and it is corked at 35^o C, If the cork can come out at 3 atmospheric pressure then upto what temperature should the bottle be heated in order to remove the cork.

A
325.5^o C

B
651^o C

C
851^o C

D
None of these

Solution
Question 10
4 / -1

At constant temperature on incerasing the pressure of a gas 5% its volume will decrease by

A
5%

B
5.26%

C
4.76%

D
4.26%

Solution