The average speed at which a nitrogen molecule effuses at 30.0 °C is 480 meters per second. The average speed at which a butene molecule (C4H8) effuses at this same temperature should therefore be
A) 120 m s-1.
B) 170 m s-1.
C) 240 m s-1.
D) 339 m s-1.
E) 679 m s-1.
Correct Answer:
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