Properties of Gases

defined as a substance that has no well defined boundaries but diffuses rapidly to fill any container in which it is placed

states that at a constant temperature, the volume of a fixed mass of gas is inversely proportional to its pressure

states that at a constant pressure, the volume of a fixed mass of gas is directly proportional to its temperature measured on the Kelvin Scale

• >In a reaction between gases
• >the volumes of the reacting gases
• >and the volumes of any gaseous products
• >are in the ratio of small whole numbers
• >Provided the volumes are measured at the same temperature and pressure

states that equal volumes of gases contain equal numbers of molecules, under the same conditions of temperature and pressure

one that obeys all the assumptions of the kinetic theory of gases under all conditions of temperature and pressure