Final answer:
Gay-Lussac's law states that the pressure of a gas is directly proportional to the absolute temperature, provided the volume and amount of gas are not changed.
Step-by-step explanation:
Gay-Lussac's law states that the pressure of a gas is directly proportional to the absolute temperature, provided the volume and amount of gas are not changed.
For example, if the volume and amount of gas are kept constant and the temperature is increased, the pressure of the gas will also increase.
The mathematical expression for Gay-Lussac's law is P/T = constant, where P is the pressure and T is the absolute temperature.