Laws of gases

• Dalton's Law


  The total pressure exerted by a mixture of gases is equal to the sum of the partial pressure of the gases present
• Pressure = force/area
• Density = mass/volume
• Density = mass/volume
• At constant temperature, if the pressure increases, then the volume decreases.
• Boyle’s law states that, “at constant temperature, the volume of a given mass of gas varies inversely as its absolute pressure.”
• If the pressure decreases, then the volume increases.
• Avogadro’s law states that equal volumes of all gases, under similar conditions of temperature and pressure, contain an equal number of molecules.
• Charles’ Law states that as the temperature of a gas increases, its volume also increases, provided that the pressure stays constant.
• Charles’ Law states that as the temperature of a gas increases, so does its volume (and vice versa)
• Boyle’s Law states that when the volume of a gas decreases, its pressure increases (and vice versa).
• Boyle’s Law states that when the volume of a fixed amount of gas decreases, its pressure increases proportionally if the temperature remains constant.
• Avogadro’s law states that at constant temperature and pressure, equal volumes of all gases contain an equal number of molecules.
• If the volume increases, then the density decreases.
• If the volume increases, then the pressure decreases.
• If the pressure increases, then the density increases.
• Gay-Lussac's Law states that when the volume of a fixed amount of gas remains constant, the pressure exerted by it will be directly proportional to the thermodynamic temperature.
• The equation for Charles' Law is V1/T1 = V2/T2
• V stands for volume (in cubic metres)
• P stands for pressure (in pascals)
• The ideal gas equation is PV=nRT
• Gay-Lussac’s law states that, “when a gas is heated at constant volume, the pressure will increase proportionally with the rise in temperature”
• The volume of a gas is not definite
• the shape of a gas is not definite
• the arrangement of gas is scattered
• the movement of gas is fast
• the attraction of atoms of gas is weak
• gases are made by tiny molecules
• the attraction between thenmolecules is negligable
• gases exhibit diffusibly
• gases have low density
• gases exhibit compressibility and expansibility
• gas has no definite shape and volume
• Diffusion - gases has the ability to spread
• Air Pressure- the force exerted by the mixture of gases
• LPA- Bad weather
• HPA- Good Weather
• Barometer- measures air pressures
• Jan Evangelista Torricelli- discovered the barometer
• Gay Lussac's law- Pressure is directly proportional to absolute temperature at constant volume.