At What Temperature Is the Rms Speed of Hydrogen Molecules,H₂,which

question 84

Multiple Choice

At what temperature is the rms speed of hydrogen molecules,H₂,which have a molecular weight of 2.02 g/mole,equal to 2.0 km/s? The Boltzmann constant is 1.38 × 10^-23 J/K and N_A = 6.022 × 10²³ molecules/mol.

• A)17°C
• B)34°C
• C)51°C
• D)68°C
• E)72°C