JAMB Physics 2024 Paper

Concept:At absolute zero, molecular motion ceases, so the average velocity of molecules is zero.Explanation:Absolute zero is $0\text{ K}$, which equals $-273.15^\circ\text{C}$.The average kinetic energy of molecules is $\bar{E}_k = \frac{3}{2}k_B T$.When $T = 0$, the average kinetic energy becomes zero.Therefore, the molecules possess no energy to move.This means their average velocity is zero.Hence, the correct answer is option C.Answer:C. Is zero