Question

At room temperature the rms speed of the molecules of a certain diatomic gas is found to be 1920 m/s.The gas is

Answer 1

Urms=3RTM‾‾‾‾‾√

U

r

m

s

=

3

R

T

M

=3×8.314×30M=1930

=

3

×

8.314

×

30

M

=

1930

M=2×10−3kg