Question

At what temperature ,will He atoms have the same rms velocity
as H2 molecules at 27degree c?​

Answer 1

Answer:

Explanation:

RMS velocity= √3RT/M,

For H2,

RMS velocity= √3R300/2(T in kelvin)

For He,

RMS velocity=√3RT/4

Equating both equations,

√3R300/2=√3RT/4

300/2=T/4

T=600K or 327degree C.

Answer 2

Answer:

The required temperature   T = 600 K

Explanation:

we know that RMS velocity in general  = √3.R.T/M

and that stands for He = RMS  =√3.R.T/4

and for H2 it is √3.R.300/2

now when we equate both the equations from both sides , we get :

3R300/2 = √3RT/4

or, 300/2 = T/4

or, T = 600 K

At 600K or 327 degrees celsius He atoms have the same rms velocity

as H2 molecules.

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