Charles' law is a gas law that states that, at constant pressure, the volume of an ideal gas is directly proportional to its temperature in Kelvin.
Jacques Charles was a French physicist who discovered Charles' law in the late 1700s. He found that when the pressure on a gas is held constant, the volume of the gas increases as its temperature increases.
Absolute zero is the lowest possible temperature, at which all molecular motion stops. It is typically measured at 0 Kelvin or -273.15 degrees Celsius.
Charles' law states that as the temperature of a gas decreases, its volume also decreases. At absolute zero, the volume of a gas would theoretically be zero, as there is no molecular motion or energy to cause expansion.
Charles' law is important because it helps us understand the relationship between temperature and volume of gases. It also has practical applications, such as in the design of refrigerators and air conditioners, which use the cooling effect of expanding gases to lower temperatures.