Molecular Speeds: the Root-Mean-Square Speed (Thermal Speed) for a Certain

question 1

Multiple Choice

Molecular speeds: The root-mean-square speed (thermal speed) for a certain gas at 100°C is 0.500 km/s. If the temperature of the gas is now increased to 200°C, the root-mean-square (thermal) speed will be closest to

• A) 563 m/s.
• B) 634 m/s.
• C) 707 m/s.
• D) 804 m/s.
• E) 1000 m/s.

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