In order to double the average speed of the molecules in a given sample of gas, the temperature (measured in Kelvins) must
A) quadruple.
B) double.
C) reduce to one-fourth its original value.
D) triple.
E) reduce to one-half its original value.

Question

Quizplus · Accepted Answer

The average speed of gas molecules is proportional to the square root of the temperature in Kelvins. To double the speed, the temperature must be quadrupled.

In Order to Double the Average Speed of the Molecules