If oxygen gas and hydrogen gas are kept at the same temperature and pressure, th

Question

If oxygen gas and hydrogen gas are kept at the same temperature and pressure, the hydrogen molecules on the average move faster than the oxygen molecules. move more slowly than the oxygen molecules. move at the same speed as the oxygen molecules. have the greater kinetic energy. have a lower kinetic energy. The pressure exerted by a gas is inversely proportional to the volume it occupies. Which is the best theoretical explanation of this? When the space in which the gas molecules move is halved, the number of collisions they make with the walls per second is doubled. A gas always completely fills its container. If the pressure on a sample of gas is doubled, the gas is compressed to half its original volume. Gas molecules travel in straight lines at high speed. The sum of the partial pressures of the gases in a mixture is equal to the total pressure of the mixture.

Explanation / Answer

Q1

Hydrogen molecules on average...

a) move faster, since they are lighter

b) false

c) false

d) false, they have the same

e) false, they have the same

Q2

a) this is correct

b) this is true, but has nothing to do with statement

c) true, but has nothing to do with argument

d) true, but has nothing to do

e) true, but has nothing to do

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