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unit 9 chemistry
vocabulary for unit 9
Term | Definition |
---|---|
absolute zero | zero on the Kelvin scale which represents the lowest possible theoretical temperature. atoms are all in the lowest possible energy state |
Boyle's law | states that the volume of a fixed amount of gas held at a constant temperature varies inversely with the pressure |
Charles's Law | states that the volume of a given mass of gas is directly proportional to its Kelvin temperature at a constant pressure |
combined gas law | single law combining Boyle's, Charles's, and Gay-Lussac's laws that states the relationship among pressure, volume, and temperature of a fixed amount of gas |
Gay Lussac's law | states that the pressure of a fixed mass of gas varies directly with the Kelvin temperature when the volume remains constant |
Avogadro's principle | states that equal volumes of gases at the same temperature and pressure contain equal number of particles |
ideal gas law | describes the physical behaviors of an ideal gas in terms of pressure, volume, temperature and the number of moles of gas |
ideal gas constant | experimentally determined constant whose value in the ideal gas equation depends on the units used for pressure |
molar volume | for a gas, the volume that 1 mole occupies at 0 degrees celsius and 1 atm of pressure |