Container A contains gas at 300C. Container B contains the same gas, but at 150C. Which of the following is a true statement? All of the gas molecules in container A move slower than all of the gas molecules in container B. The root mean square speed (urms) of the gas molecules in container B is greater than the root mean square speed (urms) of the gas molecules in container A O All of the gas molecules in container A move faster than all of the gas molecules in container B O None of the above statements are true.