Molecular Speeds: The molecular weight of nitrogen, N2, is 28 g/mol. What is the rms speed of nitrogen molecules in a cooler at 8.0°C? The Boltzmann constant is 1.38 × 10-23 J/K and NA = 6.022 × 1023 molecules/mol.
A. 450 m/s
B. 500 m/s
C. 550 m/s
D. 600 m/s
E. 650 m/s
Answer: B
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