Q136. A gas sample contains four molecules with speeds of 2 km/s, 3 km/s, 4 km/s, and 5 km/s. What is the root-mean-square speed (Vrms) of these molecules in km/s?Physics — NUST Mock By Dogers 5 — Question 136 of 200A. 3.50B. 3.67C. 13.5D. 14.0Practice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →