Physics Questions and Answers – Kinetic Theory – Specific Heat Capacity

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This set of Physics Multiple Choice Questions & Answers (MCQs) focuses on “Kinetic Theory – Specific Heat Capacity”.

1. How many degrees of freedom are there in a monatomic gas?
a) 1
b) 2
c) 3
d) 0
View Answer

Answer: c
Explanation: A monatomic gas has 3 translational degrees of freedom.
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2. What is the ratio of specific heats for a monatomic gas?
a) 5/3
b) 5/2
c) 7/5
d) 9/5
View Answer

Answer: a
Explanation: The value of Cv for a monatomic gas is 3/2 R and
CP is 5/2 R.
Thus the value of γ is:
CP/CV= 5/3.

3. How many degrees of freedom are there in a diatomic gas?
a) 2
b) 5
c) 3
d) 1
View Answer

Answer: b
Explanation: A diatomic gas has 3 translational degrees of freedom and 2 rotational degrees of freedom. Thus, the total number of degrees of freedom is 5.
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4. What is the ratio of specific heats for a diatomic gas?
a) 7/5
b) 5/3
c) 9/7
d) 7/2
View Answer

Answer: a
Explanation: The value of CV for a diatomic gas is 7/2 R and
CP is 9/2 R.
Thus the value of γ is:
CP/CV = 7/5.

Sanfoundry Global Education & Learning Series – Physics – Class 11.

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Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He is Linux Kernel Developer & SAN Architect and is passionate about competency developments in these areas. He lives in Bangalore and delivers focused training sessions to IT professionals in Linux Kernel, Linux Debugging, Linux Device Drivers, Linux Networking, Linux Storage, Advanced C Programming, SAN Storage Technologies, SCSI Internals & Storage Protocols such as iSCSI & Fiber Channel. Stay connected with him @ LinkedIn | Youtube | Instagram | Facebook | Twitter