At 0 K which of the following properties of a gas will be zero? (a) vibrational energy (b) density (c) kinetic energy (d) potential energy

Answer: (c). By kinetic theory the KE of a molecule is 3/2kBT, which is zero at T = 0 K. Density and potential energy do not become zero at 0 K. So the answer is (c) kinetic energy.

At 0 K which of the following properties of a gas will be zero? | NEET 1996 (AIPMT)

Q38NEET 1996 · AIPMTEasy

Pressure & Kinetic Energy of a Gas

At 0 K which of the following properties of a gas will be zero?

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Answer: (c)

By kinetic theory the KE of a molecule is $\frac{3}{2}k_BT$ , which is zero at $T = 0$ K.
Density and potential energy do not become zero at 0 K.
So the answer is (c) kinetic energy.

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