Question #eacbf

1 Answer
sans
Oct 4, 2017

KE = #5.23 *10^-22# J

Explanation:

Given:
v = 150 m/s
m = 28 g/mol

- Solving for the mass of the molecule in kg

m = 28 g/mol = 0.028 kg / mole = 0.028 kg / #6.022 * 10^23# molecules = #4.65 * 10^-26# kg/ molecule
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- Solving for the kinetic energy (KE)

KE = #1/2 mv^2# = #1/2 (4.65 * 10^-26 kg) (150 m/s)^2 = 5.23 *10^-22# J

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