What Is the Speed of an Average Argon Atom That $\times$

question 155

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 $\times$ 10^-27 kg)

• A)0.52 m/s
• B)5.2 \(\times\) 10³ m/s
• C)1.9 \(\times\) 10³ m/s
• D)1.9 m/s
• E)25 m/s