Calclute the root mean square speed of Ne atoms at temperture at whic their average kinetics...

Calclute the root mean square speed of Ne atoms at temperture at whic their average kinetics energy is 5.22kj/mol?

Expert Solution

average kinetic energy = 5.22 kJ/mol

= 5.22 x 6.023 x 10^-23 x 10^3

= 3.14 x 10^-19 J

K E = 3/2 kT

k = 1.38 x 10^-23 J / K

3.14 x 10^-19 = 3/2 x 1.38 x 10^-23 x T

T = 15169 K

Vrms = sqrt (3 R T / M)

= sqrt (3x 8.314 x 15169 / 0.020)

Vrms = 4349.4 m / s

queen_honey_blossom answered 2 years ago

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