Kinetic Theory of Gases Test

Result

Kinetic Theory of Gases Test - 56

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Weekly Quiz Competition

Question 1
4 / -1

What is the ratio of specific heats of constant pressure and constant volume for NH₃

A
1.33

B
1.44

C
1.28

D
1.67

Solution
Question 2
4 / -1

One mole of ideal monoatomic gas (γ = 5/3) is mixed with one mole of diatomic gas (γ = 7/5). What is γ for the mixture? γ denotes the ratio of specific heat at constant pressure, to that at constant volume

A
3/2

B
23/15

C
35/23

D
4/3

Solution
Question 3
4 / -1

A gaseous mixture contains equal number of hydrogen and nitrogen molecules. Specific heat measurements on this mixture at temperatures below 100K would indicate that the value of γ (ratio of specific heats) for this mixture is

A
3/2

B
4/3

C
5/3

D
7/5

Solution
Question 4
4 / -1

The temperature of argon, kept in a vessel, is raised by 1°C at a constant volume. The total heat supplied to the gas is a combination of translational and rotational energies. Their respective shares are

A
60% and 40%

B
40% and 60%

C
50% and 50%

D
100% and 0%
Question 5
4 / -1

The kinetic energy, due to translational motion, of most of the molecules of an ideal gas at absolute temperature T, is

A
kT

B
k/T

C
T/k

D
1/kT

Solution
Question 6
4 / -1

The number of translational degrees of freedom for a diatomic gas is

A
2

B
3

C
5

D
6
Question 7
4 / -1

The number of translational degrees of freedom for a diatomic gas is

A
2

B
3

C
5

D
6
Question 8
4 / -1

The value of the gas constant (R) calculated from the perfect gas equation is 8.32 joules/g mole K, whereas its value calculated from the knowledge of C_Pand C_V of the gas is 1.98 cal/g mole K. From this data, the value of J is

A
4.16 J/cal

B
4.18 J/cal

C
4.20 J/cal

D
4.22 J/cal

Solution
Question 9
4 / -1

For a gas, if ratio of specific heats at constant pressure and volume is γ, then value of degrees of freedom is

A

B

C

D

Solution
Question 10
4 / -1

310 J of heat is required to raise the temperature of 2 mole of an ideal gas at constant pressure from 25°C to 35°C. The amount of heat required to raise the temperature of the gas through the same range at constant volume is

A
384 J

B
144 J

C
276 J

D
452 J

Solution