Question

Laju efektif (RMS) gas oksigen bermassa 32 g/mol pada suhu 27°C adalah...

Answer 1

Mr = 32 g/mol = 32 kg/kmol
R = 8314 J/(kmol.kg)
T = 27 °C = 27 + 273 = 300 K

Answer 2

M = 32 g/mol = 0,032
T = 27⁰C = 300⁰K
R = 8,314
V rms = .................?

Penyelesaian :

V rms = √3RT / M
V rms = √(3 • 8,314 • 300) / 0,032
V rms = √7482,6 / 0,032
V rms = √233831,25
V rms = 483 m/s

Jadi, klaju efektifnya adalah 483 m/s