Chemistry: Charles+ Boyle's Law, Combined Gas Law, Formula Mass, Moles and Mass

Charles's Law

Describes the direct relationship between the volume of a gas and its absolute temperature (measured in Kelvin) while keeping the pressure constant.

Boyle's Law

States that the pressure of a gas decreases as its volume increases, provided the temperature remains unchanged.

Combined Gas Law

A unified equation that incorporates Charles's Law, Boyle's Law, and Gay-Lussac's Law, linking the pressure, volume, and temperature of a fixed quantity of gas.

Formula Mass

The total mass of all atoms in a given chemical formula, usually indicated in atomic mass units (amu).

Moles

A quantity in chemistry denoting 6.022 x 10²³ particles (atoms, molecules, ions, etc.) of a substance, known as Avogadro's number.

Mass

The total amount of matter contained in a substance, generally quantified in grams or kilograms.

Gas Behavior

The study of how gases respond to changes in pressure, volume, and temperature, which is described by gas laws.

Avogadro's Principle

A principle stating that equal volumes of gases, at the same temperature and pressure, contain an equal number of molecules.

Ideal Gas Law

An equation of state for an ideal gas, typically expressed as PV = nRT, where P is pressure, V is volume, n is the number of moles, R is the gas constant, and T is the temperature in Kelvin.

Dalton's Law of Partial Pressures

A law stating that in a mixture of non-reacting gases, the total pressure is equal to the sum of the partial pressures of each individual gas.