Manipal MET2010ChemistryStates of Matter
The root mean square velocity of a gas is doubled when the temperature is
Options
- Aincreased four times
- Bincreased two times
- Creduced to half
- Dreduced to one fourth
Correct answer
A. increased four times
Step-by-step solution
v_ rms = 3 R T M v_ rms T At two different temperatures, v_ rms v_ rms ^ = T T^ Given, v_ rms ^ =2 v_ rms 1 2 = T T^ or 1 4 = T T^ T^ =4 T v_ rms gets doubled, when the temperature is increased four times.