The ideal gas law, a foundational thermodynamic equation, establishes the relationship between a gas's pressure, volume, amount, and temperature. It is expressed as:
\[
PV = nRT
\]
In this equation:
- \( P \) represents pressure,
- \( V \) represents volume,
- \( n \) denotes the number of moles of gas,
- \( R \) is the ideal gas constant,
- \( T \) signifies temperature in Kelvin.
This equation models the behavior of ideal gases across diverse pressure, volume, and temperature conditions.
Therefore, the accurate formulation is \( PV = nRT \).