The Formula for Gay-Lussacs Law

Gay-Lussac’s Law is a special case of the ideal gas law. This law only applies to ideal gases held at a constant volume allowing only the pressure and temperature to change. Gay-Lussac’s Law is expressed as:Pi/Ti Pf/TfwherePi initial pressureTi initial absolute temperaturePf final pressureTf final absolute temperature It is extremely important to remember the temperatures are absolute temperatures measured in Kelvin, NOT  °C or  °F.