An ideal gas is a theoretical concept in physics and chemistry that describes a gas with properties adhering to the ideal gas law. This law assumes negligible molecular volume and intermolecular forces, and elastic collisions between particles.
In an ideal gas, pressure, volume, and temperature are related by the equation PV = nRT, where P is pressure, V is volume, n is the number of moles, R is the ideal gas constant, and T is temperature in Kelvin.
Real gases deviate from ideality under certain conditions, but the concept aids in understanding gas behavior.
