According to Dalton's Law, what is the relationship between the total pressure and partial pressures in a mixture of non-reacting gases?

Dalton's Law of Partial Pressures states that in a mixture of non-reacting gases, the total pressure exerted by the mixture is equal to the sum of the partial pressures of each individual gas in the mixture. Each gas contributes to the overall pressure based on its own volume and temperature, independent of the other gases present. This means that if you were to measure the pressure exerted by each gas separately and then add these pressures together, you would arrive at the total pressure of the gas mixture.

This relationship is fundamental in understanding how gases behave in mixtures, allowing for calculations involving gas laws, ideal gas behavior, and applications in various scientific fields such as chemistry and meteorology. Thus, the correct statement summarizing this relationship reflects the essence of Dalton's principle.