For a mixture of ideal gases, the total pressure exerted by the mixture equals the sum of the pressures that each gas would exert on its own. This observation, known as Dalton's law of partial pressures, can be written as follows: _P_ (total) = _P_ ₁ + _P_ ₂ + _P_ ₃ + ... where _P_ ₁, _P_ ₂, and _P_ ₃ are the partial pressures of the different gases in the mixture, and _P_ (total) is the total pr
License: CC BY-NC-SA by Khan Academy