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Chapter 10 Voca
| Question | Answer |
|---|---|
| Diffusion | Spontaneous mixing of the particles of two substances caused by their random motion. |
| effusion | A process by which gas particles pass through a tiny opening. |
| elastic collision | A collision between gas particles and container walls in which there is no net loss of kinetic energy. |
| fluid | A substance that can flow and therefore take the shape of it’s container; a liquid or a gas. |
| ideal gas | An imaginary gas that perfectly fits all the assumptions of the kinetic-molecular theory. |
| kinetic-molecular theory | A theory based on the idea that particles of matter are always in motion. |
| real gas | A gas that does not behave completely according to the assumptions of the kinetic-molecular theory. |
| atmosphere of pressure (atm) | Exactly equivalent to 760mm Hg. |
| barometer | A device used to measure atmospheric pressure. |
| millimeter of mercury (mm of Hg) | A common unit of pressure. |
| newton | The SI unit for force; the force that will increase the speed of a one kilogram mass by one meter per second each second it is applied. |
| pascal | The pressure excerpted by a force of one newton acting on an area of one square meter. |
| kilopascal | The multiplet of peaks you see in the ESR spectrum. |
| pressure | The force per unit area on a surface. |
| standard temperature and pressure (STP) | The agreed-upon standard conditions of exactly 1 atm pressure and 0 degrees celsius. |
| standard ambient temperature and pressure (SATP) | The maximum and minimum amounts by which the pressure varies from normal ambient pressure. |
| torr | A type of vacuum pump capable of pressures down to .01 torr. |
| absolute zero | The temperature -273.15 C given a value of zero in the Kelvin scale. |
| Kelvin | The temperature scale used in chemistry, physics and some engineering calculations. Zero degrees Kelvin (-273 centigrade) is the temperature at which all thermal motion ceases. |
| Boyle’s Law | The volume of a fixed mass of gas |
| Charles’s Law | The volume of a fixed mass of gas at constant pressure varies directly with the kelvin temperature. |
| Combined gas law | A measure of the relative tendency of an atom to attract electrons to itself when chemically combined with another atom. |
| Dalton’s Law of partial pressure | States that the total pressure exerted by a gaseous mixture is equal to the sum of the partial pressures of each individual component in a gas mixture. |
| Gay-Lusscac’s Law | States that the pressure of a sample of gas at constant volume, is directly proportional to its temperature in Kelvin. |
| Ideal gas law | One in which all collisions between atoms or molecules are perfectly eleastic and in which there are no intermolecular attractive forces. |
| Partial pressure | Which is the pressure which the gas would have if it alone occupied the volume. |
| Avogadro’s Law | Two given samples of an ideal gas, at the same temperature, pressure and volume, contain the same number of molecules. |
| van der Waals equation | Is an equation of state for a fluid composed of particles that have a non-zero volume and a pairwise attractive inter-particle force. |
| bar | 100 kPa |
| Gas Constant | Is a physical constant which is featured in a large number of fundamental equations in the physical sciences, such as the ideal gas law and the Nernst equation. |
Created by:
EllieKennamer
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