Question

Calculate the rms speed of an oxygen molecule at 0c

Answer 1

Answer:

461.0935m/s

Explanation:

v (rms) = √(3 RT/M) = √(3 N k T/M) = √(3 kT/m)

where R = 8.314 gas const = N k

M = N * m

N = Avogadro No. = 6.02*10^23

M = mass of 1 molecule = 32 gram = 0.032 kg

k = Boltsman const = 1.38*10^-23

m = M/N = 0.032/6.02*10^23 = 5.316*10^-26

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v (rms) = √(3* 1.38*10^-23* 273/5.32*10^-26)

v (rms) = √(3* 1.38*10^3* 273/5.316)

= 461.0935 m/s

Answer 2

Answer:

calculate the root (rms) velocity and avreage velocity for oxygen molecules at 0°c