Kinetic Theory of Gases Test

Result

Kinetic Theory of Gases Test - 59

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Weekly Quiz Competition

Question 1
4 / -1

For a diatomic gas change in internal energy for unit change in temperature for constant pressure and constant volume is U₁ and U₂ respectively, U₁ : U₂ is

A
5 : 3

B
3 : 5

C
1 : 1

D
5 : 7

Solution
Question 2
4 / -1

If number of molecules of H₂ are double than that of O₂, then ratio of kinetic energy of hydrogen and that of oxygen at 300 K is

A
1 : 1

B
1 : 2

C
2 : 1

D
1 : 16

Solution
Question 3
4 / -1

The average kinetic energy of a gas at –23° C and 75 cm pressure is 5 × 10^–14erg for H₂. The mean kineticenergy of the O₂ at 227°C and 150 cm pressure will be

A
80 × 10^–14erg

B
20 × 10^–14erg

C
40 × 10^–14erg

D
10 × 10^–14erg

Solution
Question 4
4 / -1

The ratio of mean kinetic energy of hydrogen and oxygen at a given temperature is

A
1 : 16

B
1 : 8

C
1 : 4

D
1 : 1
Question 5
4 / -1

The ratio of mean kinetic energy of hydrogen and nitrogen at temperature 300 K and 450 K respectively, is

A
3 : 2

B
2 : 3

C
2 : 21

D
4 : 9

Solution
Question 6
4 / -1

Pressure of an ideal gas is increased by keeping temperature constant. What is the effect on kinetic energy of molecules

A
Increase

B
Decrease

C
No change

D
Can't be determined
Question 7
4 / -1

Mean kinetic energy (or average energy) per molecule of a monoatomic gas is given by

A

B

C

D

Solution
Question 8
4 / -1

A sealed container with negligible coefficient of volumetric expansion contains helium (a monoatomic gas). When it is heated from 300 K to 600 K, theaverage K.E. of helium atoms is

A
Halved

B
Unchanged

C
Doubled

D
Increased by factor Ari

Solution
Question 9
4 / -1

The time average of the kinetic energy of one molecule of a gas taken over a long period of time

A
Is proportional to the square root of the absolute temperature of the gas

B
Is proportional to the absolute temperature of the gas

C
Is proportional to the square of the absolute temperature of the gas

D
Does not depend upon the absolute temperature of the gas

Solution
Question 10
4 / -1

The kinetic energy per g mol for a diatomic gas at room temperature is

A

B

C

D

Solution