Question

The temperature at which rms velocity O, molecule
is same as helium molecules at STP.​

Answer 1

At 1092 K RMS value of O will be same as Rms value of He at STP.

Rms value stands for root mean square velocity.

It is quantity of the current produced in the circuit same when both dc current and ac current is passed seperately.

In chemistry, it is usually root of summation of squares of the velocities.

It's formula is given as root 3RT/M

Where R= Boltzman constant.

STP temp is 273 k.

M of helium molecules is 4 g.

M of O atom is 16 g.

Comparing we get,

273/4=T/16

Or T= 1092 K