Should the specific heat of monoatomic gas be less than, equal to or greater than that of a diatomic gas at room
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So, we'll discuss about degrees of freedom. Degrees of freedom of gas molecules indicate the number of ways a given gas molecule could move in 3 spatial dimensions.
A stationary gas molecule will move when we give certain amount of energy (be it in the form of electromagnetic or thermal) to the molecule. The resulting movement can be translational (moving along the 3 axes;3 degrees of freedom), rotational (clockwise,anti-clockwise;2 degrees of freedom) or vibrational (1 degree of freedom).Thus, for mono-atomic and di-atomic gas molecules we have total possible degrees of freedom as 6. At room temperature, the monoatomic gases have only 3 degrees of freedom (an atom cannot rotate around its own; the same with vibration), whereas diatomic molecules have 5 degrees of freedom (3 translational+2 rotational).
A stationary gas molecule will move when we give certain amount of energy (be it in the form of electromagnetic or thermal) to the molecule. The resulting movement can be translational (moving along the 3 axes;3 degrees of freedom), rotational (clockwise,anti-clockwise;2 degrees of freedom) or vibrational (1 degree of freedom).Thus, for mono-atomic and di-atomic gas molecules we have total possible degrees of freedom as 6. At room temperature, the monoatomic gases have only 3 degrees of freedom (an atom cannot rotate around its own; the same with vibration), whereas diatomic molecules have 5 degrees of freedom (3 translational+2 rotational).
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