Gay-Lussac Law (final pressure)

This equation computes the final (resultant) pressure of an ideal gas after a temperature change occurs; in other words, if you know the initial state of an ideal gas, you can determine the final state using the pressure-temperature law known as Gay-Lussac's Law.

INPUTS

To compute the final pressure, you input the following variable values: 

• Initial Pressure - The measured starting pressure before a temperature change to the ideal gas
• Initial Temperature - The initial measured temperature of the ideal gas
• Final Temperature - The final measured temperature of the ideal gas

NOTES

The pressure- volume relationship of Gay-Lussac's Law is a simple equation expressing the proportional relationship between temperature and pressure of an ideal gas.  This is often referred to as Amontons' Law of of Pressure-Temperature. The law simple states that as temperature increases so does pressure as long as the quantities for volume and mass remain constant.

Mathematically, this law is represented by: `P_1*T_2 = P_2*T_1`

Since Thermodynamics, is concerned with heat and its relation to energy and work, relating such attributes of gases as temperature, internal energy, entropy, and pressure, this law applies to both Thermodynamics and Chemistry.

The Gay-Lussac Law applies to Thermodynamics as well as a number of topics in science and engineering, in physics,  chemistry, chemical engineering, aerospace engineering, mechanical engineering, cell biology, biomedical engineering, and materials sciences.