Questions
Assertion : Vibrational degree of freedom of a diatomic gas molecule appears at every high temperature.
Reason : Diatomic gas has two vibrational degree of freedom in one direction. [AIIMS 2019]
detailed solution
Correct option is B
There are two vibrational degree of freedom of diatomic gas molecules at high temperature , one is kinetic mode and the other is potential mode. At low temperature the atoms of a diatomic gas are assumed to be connected to each other by a massless rigid rod, at high temperature this rod behaves like a spring and the atoms start vibrating .Talk to our academic expert!
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