The RMS velocity of hydrogen at 300 K is 1.9 x 10^3 m/sec. The RMS speed of oxygen at 1200 K is. The RMS velocity of hydrogen at 300 K is 1.9 x 10^3 m/sec. The RMS speed of oxygen at 1200 K is. September 13, 2021 Category: Chapter 14 - Thermometry, Expansion and KTG , MTG NEET Physics , Facebook Messenger WhatsApp Share this:TwitterFacebook Related