The r.m.s velocity of the molecules of an ideal gas is C at a temperature of 100K. At what temperature is r.m.s. velocity will be doubled?
200 K
400 K
300 K
50 K
As we learnt in
Root mean square velocity -
- wherein
R = Universal gas constant
M = molar mass
P = pressure due to gas
= density
will be doubled when temperature increases four times.
Temperature = 4 initial temperature
= 400 K
Option 1)
200 K
This option is incorrect
Option 2)
400 K
This option is correct
Option 3)
300 K
This option is incorrect
Option 4)
50 K
This option is incorrect