00:01
The key to answering this question is to understand what happens with a change in temperature, as so many of these responses are associated with temperature.
00:11
So as temperature increases, we get an increase in the kinetic energy of the molecules.
00:30
We also get an increase in the velocity of the molecules.
00:38
We also get an increase in the...
00:43
Force of collision so they would strike the walls of the container with greater force.
00:55
If temperature doesn't increase, then none of these change.
01:03
If, however, we decrease the volume, which results in an increase in pressure, the increase in pressure will occur simply due to the molecules colliding more frequently with the walls of the container.
01:20
We'll have the molecules collide with the same force, but we'll have more of them collide due to an increase in frequency, which will increase the force per unit area and increase the pressure.
01:34
So the first response says, with higher average speeds, on average the molecules hit the walls of the container with more force.
01:43
No, we won't have any change in speed because we didn't change temperature.
01:48
The next one says for a given gas at constant temperature, the force per collision is constant.
01:55
That would simply be due to the temperature staying constant...