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What Is the Speed of an Average Argon Atom That

Question 109

Multiple Choice

What is the speed of an average argon atom that has a de Broglie wavelength of 5.2 pm?
(1 amu = 1.66054 *10^-27 kg.)

A) 0.52 m/s
B) 5.2 * 10³ m/s
C) 1.9 * 10³ m/s
D) 1.9 m/s
E) 25 m/s

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