Final answer:
Gay-Lussac's law states that the pressure of a gas directly varies with its absolute temperature, when volume is held constant. The variables involved in this law are the Pressure (P) and Absolute Temperature (T), which when divided by each other, give a specific constant for the gas.
Step-by-step explanation:
Gay-Lussac's law is a principle in the field of gas laws in chemistry, which states that the pressure of a gas directly varies with its absolute temperature, provided the volume is kept constant. The variables involved in Gay-Lussac's law and that represent its mathematical relationship are: Pressure (P) and Absolute Temperature (T).
Mathematically, this relationship is described by the formula P/T = k, where 'k' is a constant specific to the gas being used. It means that if the temperature (T) of a volume of gas is increased, the pressure (P) also increases proportionally, and vice versa.
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