Ideal Gas law

Ideal Gas Law

A fundamental equation in chemistry and physics that describes how gases behave under varying conditions, represented as PV = nRT.

Pressure (P)

The force exerted by the gas per unit area on the container's walls.

Volumes (V)

The amount of space that the gas occupies.

Mols (n)

Measures the amount of substance; in the context of gases, it specifies the number of molecules present.

Universal Gas Constant (R)

A proportionality factor in the Ideal Gas Law, unifying all different units used in gas equations; typically valued at 8.314 J/(mol·K) in SI units.

Temperature (T)

The absolute temperature of the gas measured in Kelvin, which affects the kinetic energy and thus the behavior of the gas particles.

Elastic Collisions

Interactions where gas particles collide with no net loss in kinetic energy.

Empirical Measurements

Observations and experiments from which laws and constants, such as the universal gas constant (R), are derived.

Dimensional Consistency

The property of an equation whereby all terms are balanced not only numerically but also in terms of their units, crucial for an equation’s applicability.

Equations of State

Formulas describing the state properties of gases (and fluids) under varying conditions, which include the Ideal Gas Law and more complex models like the Van der Waals equation.

Melting

Solid to Liquid

Freezing

Liquid to solid

Deposition

Gas to solid

Sublimation

Solid to gas

Condensation

Gas to liquid

Evaporation

Liquid to gas

Endothermic

Absorbs heat

Exothermic

Releasing heat