Convert between units of volume, pressure, and temperature.
This explains why it's possible to walk on top of deep snow with large, flat snowshoes when ordinary rubber boots would cause you to sink. Ultimately, the ability of the bottom person to bear the pressure, caused by the weight of all the people stacked above, is the limiting factor.
Check Your Understanding If you consider a very small object such as a grain of pollen, in a gas, then the number of atoms and molecules striking its surface would also be relatively small. We deal with this variation by considering the average kinetic energy of the molecules.
He drew a picture of a vertical cylinder, closed at the bottom, with a piston at the top, the piston having a weight on it, both piston and weight being supported by the air pressure inside the cylinder. The theory helps explain observable properties and behaviors of solids, liquids, and gases.
The mercury in the tube fell to a height such that the difference between the surface of the mercury in the dish and the top of the mercury column in the tube was millimeters. This is N all of the gas molecules, the total number of them.
I'll call this v x one squared plus there may be some other particle that has a different component, two, and there may be some particle that has a different component, three. The kinetic-molecular theory as it applies to gases has five basic assumptions.
PhET Explorations: Gas Properties Pump gas molecules into a box and see what happens as you change the volume, add or remove heat, change gravity, and more.
An average sized person probably has a total force exerted on them from the atmosphere in excess of 25, pounds.