Question

Two different gases have exactly the same temperature. Do the molecules have the
same RMS speed?

Answer 1

Answer:

Heya user.....❤

It’s false.

$</strong><strong>V</strong><strong>rms = \sqrt{3</strong><strong>RT</strong><strong> \div </strong><strong>M</strong><strong>}$

Because it also depends on molar mass.

Hope it’s helpful....... ☺

Answer 2

No, the molecules will not have the same RMS speed.

• We know that the RMS speed of a molecule depends on its mass and temperature.
• The RMS speed is directly proportional to the mass of the molecule while it is inversely proportional to the temperature of the gas.
• Hence, even if the gases have same temperature, they could have different RMS speeds due to difference in masses.