Kinetic Theory of Gases Test

Result

Kinetic Theory of Gases Test - 73

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Weekly Quiz Competition

Question 1
4 / -1

Hydrogen gas is filled in a ballon at 20^o C. If temperature is made 40^o C, pressure remaining the same what fraction of haydrogen will come out

A
0.75

B
0.07

C
0.25

D
0.5

Solution
Question 2
4 / -1

When the pressure on 1200 ml of a gas is increased from 70 cm to 120 cm of mercury at constant temperature, the new volume of the gas will be

A
400 ml

B
600 ml

C
700 ml

D
500 ml

Solution
Question 3
4 / -1

A gas at 27^o C temperature and 30 atmospheric pressure is allowed to expand to the atmospheric pressure if the volume becomes two times its initial volume, then the final temperature becomes

A
273^o C

B
–173^o C

C
173^o C

D
100^o C

Solution
Question 4
4 / -1

The pressure and temperature of two different gases P and T having the volumes V for each. They are mixed keeping the same volume and temperature, the pressure of the mixture will be,

A
P

B
P/2

C
4P

D
2P

Solution
Question 5
4 / -1

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

A
333^o C

B
171^o C

C
444^o C

D
80^o C

Solution
Question 6
4 / -1

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

A
15%

B
25%

C
40%

D
30%

Solution
Question 7
4 / -1

The relation between the gas pressure P and average kinetic energy per unit volume E is

A

B

C

D

Solution
Question 8
4 / -1

Gas at a pressure P_o is contained in a vessel. If the masses of all the molecules are halved and their speeds are doubled, the resulting pressure will be equal to

A
2 P_o

B
4 P_o

C
P_o/2

D
P_o

Solution
Question 9
4 / -1

The average transitional energy and rms speed of molecules in sample of oxygen gas at 300 K are 6.21 × 10^–21 J and 484 m s respectively. The corresponding values at 600 K are nearly (assuming ideal gas behavior)

A

B

C

D

Solution
Question 10
4 / -1

At a given temperature the rms velocity of molecules of the gas is

A
Proportional to molecular weight

B
Inversely proportional to molecular weight

C
Inversely proportional to square root of molecular weight

D
Proportional to square of molecular weight

Solution