Rearrange the ideal gas equation to calculate pressure, volume, amount, gas constant or temperature where appropriate.

The ideal gas equation is expressed as pV = nRT, where p is pressure, V is volume, n is the amount of gas in moles, R is the ideal gas constant, and T is the temperature in Kelvin. To rearrange this equation, isolate the desired variable. For example, to find pressure (p), rearrange to p = nRT/V. Substitute known values for n, R, T, and V into the equation. This allows for the calculation of the unknown variable, ensuring all units are consistent, particularly using SI units for pressure (Pa), volume (m³), and temperature (K). This consistency is crucial for accurate results.