Thermodynamics MOC

Macroscopic state variables of an ideal gas

The macroscopic state of a gas in thermal equilibrium is fully encoded by its Temperature, Pressure, and Volume. These are known as the state parameters or thermodynamic variables.

|𝑔⟩=\vthree𝑝𝑉𝑇

Typically the units used are

• 𝑇 :K for temperature
• 𝑝 :Pa=N⋅m−2 for pressure
• 𝑉 :m3 for volume

These quantities, together with the number of moles of gas particles, are related by the Ideal gas law.

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