Molecular Speeds: the Root-Mean-Square Speed (Thermal Speed) of the Molecules

question 91

Multiple Choice

Molecular speeds: The root-mean-square speed (thermal speed) of the molecules of a gas is 200 m/s at 23.0°C. At 227°C the root-mean-square speed (thermal speed) of the molecules will be closest to

• A) 160 m/s
• B) 330 m/s
• C) 260 m/s
• D) 630 m/s
• E) 2000 m/s

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