Q:

# What is Dalton's law?

A:

Dalton's law states that the total pressure of the gas mixture in a container is equivalent to the sum of the partial pressures of the individual gases in that container. Dalton's law only refers to nonreacting gases and is related to the ideal gas law, which predicts how the pressure, volume and temperature of a gas is related to the amount of the gas present.

## Keep Learning

The partial pressure is calculated by taking the amount of gas, in moles; multiplying it by the universal gas constant and the temperature of the system; and then dividing it by the volume of the system. In the kinetic theory of gases, the molecules in a gas mixture expand to fill up the container, expanding so far apart that they act independently of each other. Thus, the pressure of an ideal gas is due to the interaction between the molecules and the container. In keeping with the ideal gas law, the pressure of this gas is influenced by the volume and temperature of the system, along with the amount of the gas in the container. Since the gases in a mixture are in the same container, they are exposed to the same temperature and volume, and since each gas exerts its own pressure in the system, these pressures can be added to find the total pressure of the system.

Sources:

## Related Questions

• A: Air is a mixture of various gases, water vapor, dust and microbes. All the constituents of air are mixed in any proportion and are not chemically bonded. T... Full Answer >
Filed Under:
• A: Distillation works by heating a mixture until a substance boils off, which can then be collected in another container after condensing. Distillation is onl... Full Answer >
Filed Under:
• A: Natural gas is a fossil fuel composed of flammable gases, primarily methane, that formed from decaying organisms buried deep beneath the Earth's surface du... Full Answer >
Filed Under:
• A: The three factors that affect gas pressure are the number of gas molecules, the volume of the container and the temperature of the container that contains ... Full Answer >
Filed Under:
PEOPLE SEARCH FOR