Question

Determine the pressure of nitrogen at 0 oC if the density of nitrogen at N.T.P. is 1.25

kg/m3

and R.M.S. speed of the molecules at N.T.P. is 489 m/s.​

Answer 1

Explanation:

Density of Nitrogen at NTP=1.25kg/m3

Density of Oxygen at NTP=1.43kg/m3

Speed of sound in oxygen is 320m/s

Speed of sound in gases =MyRT

y=1.4 given for both gases

320=MO21.4×8.314kj/kmolek×293

(320)2=MO21.4×8.314KJ/kmolek×293

MO2=320×3201.4×8.314kJ/kmolek×293

MO2=33.30kg/kmole

Density =volumeMass

1.43=V33.30

V=23.25

For Nitrogen (N2)

1.25=