What Is Charle’s Law ? Charles ’s Law , also known as the law of volumes, is a gas law that describes how gases tend to expand when heated. It states that, at constant pressure, the volume of a given mass of gas is directly proportional to its absolute temperature. Mathematically, Charles ’s Law is expressed as: Charle’s Law Formula V 1 / T 1 = V 2 / T 2 where: V 1 and V 2 are the initial and final volumes of the gas, T 1 and T 2 are the initial and final absolute temperatures of the gas ... Learn Charles Law with stepwise derivation, graphs, examples, and applications in chemistry. Master gas volume-temperature relationships for exams and real-life understanding. Charles Law Application in Real Life Charles Law Solved Problems What Is Charles Law ? Charles’ law , also sometimes referred to as the law of volumes, gives a detailed account of how gas expands when the temperature is increased. Conversely, when there is a decrease in temperature, it will lead to a decrease in volume. Charle’s law : According to Charles’ law , the volume of an ideal gas is precisely proportional to the temperature in the absolute scale when the pressure is held constant. The law also specifies that the temperature measured in Kelvin and the volume of a dry gas sample will be in direct proportion to one another when the pressure placed on the sample remains the same. Jacques Charles , a French scientist, is credited with developing this principle in the year 1780. In his unpublished paper ...