Respuesta :
Pressure and temperature are the variables in Gay-Lussac's law.
The law states that a pressure of a gas is directly proportional to the gas' temperature if the mass and volume are fixed. This means that there are only two variables, as the other two values are fixed: only pressure and temperature can change according to this law.
The law states that a pressure of a gas is directly proportional to the gas' temperature if the mass and volume are fixed. This means that there are only two variables, as the other two values are fixed: only pressure and temperature can change according to this law.
Answer:
pressure and temp.
Explanation:
temperature (T1), the initial pressure (P1), the final temperature (T2) and the final pressure (P2)