Multiple Choice
According to kinetic- molecular theory, in which of the following gases will the root- mean- square speed of the molecules be the highest at 200 °C?
A) HCl
B) Cl2
C) SF6
D) H2O
E) None. The molecules of all gases have the same root- mean- square speed at any given temperature.
Correct Answer:

Verified
Correct Answer:
Verified
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