11 Chemistry States of Matter - Set No : 6 Question No :10
Question No : 10
If the rms speed of a gaseous
molecule is  at a pressure  atm, then what will be the rms
speed at a pressure  atm and constant temperature? |
| a) |  | b) |  |
| c) |  | d) |  |
Answer No : 10
(a)rms speed
of a gaseous molecule is m/s at a pressure atm. We know
that in kinetic theory of gasrms speed  We know,  then rms
speed  As
temperature is constant so,  is constant. Hence, rms speed is
also constant. If the pressure is doubled at constant temperature, there is
no change in rms speed. |