At What Temperature Would the Root-Mean-Square Speed of Hydrogen,H₂,molecules Equal

question 27

Multiple Choice

At what temperature would the root-mean-square speed of hydrogen,H₂,molecules equal 11.2 km/s (the earth's escape speed) ? The mass of a hydrogen atom is 1.67 × 10^-27 kg,and the Boltzmann constant is 1.38 × 10^-23 J/K.

• A)1.01 × 10² K
• B)1.01 × 10⁴ K
• C)1.01 × 10⁶ K
• D)1.01 × 10⁸ K

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