Degrees of Freedom, Law of Equipartition of Energy and Applications to Specific Heat Capacities of Gases NEET Questions

Degrees of Freedom, Law of Equipartition of Energy and Applications to Specific Heat Capacities of Gases MCQ Questions

7.
How does the specific heat capacity at constant volume (Cv) relate to the degrees of freedom (f) for an ideal gas?
A.
Cv = (f/2)R
B.
Cv = fR
C.
Cv = (f/3)R
D.
Cv = (2/f)R
ANSWER :
A. Cv = (f/2)R
8.
The molar specific heat capacity at constant volume for a diatomic gas is:
A.
(3/2)R
B.
(5/2)R
C.
(7/2)R
D.
R
ANSWER :
B. (5/2)R
9.
What is the value of Cp for a monoatomic ideal gas?
A.
R
B.
(3/2)R
C.
(5/2)R
D.
(7/2)R
ANSWER :
C. (5/2)R
10.
What is the ratio of Cp/Cv (γ) for a diatomic gas?
A.
1
B.
1.33
C.
1.4
D.
1.67
ANSWER :
C. 1.4
11.
According to the equipartition theorem, the energy associated with rotational motion for a diatomic gas is:
A.
(1/2)kT
B.
kT
C.
(3/2)kT
D.
2kT
ANSWER :
B. kT
12.
What is the specific heat capacity at constant volume (Cv) for a triatomic non-linear gas?
A.
(3/2)R
B.
(5/2)R
C.
(6/2)R
D.
(7/2)R
ANSWER :
C. (6/2)R