Question

Which of the following is valid at absolute zero

• A. Kinetic energy of the gas becomes zero but the molecular motion does not become zero
• B. Kinetic energy of the gas becomes zero and molecular motion also becomes zero
• C. Kinetic energy of the gas decreases but does not become zero
• D. None of the above

Answer 1

The correct option is B

Kinetic energy of the gas becomes zero and molecular motion also becomes zero

Kinetic energy of the gas becomes zero and molecular motion also becomes zero. Kinetic energy is the energy of motion, if the energy is zero, there will be no molecular motion.