
Émile Clapeyron
1799 – 1864
Gave the ideal-gas law its combined form.
A French engineer who gave the ideal-gas law its combined form (PV = nRT) in 1834 and did foundational work in thermodynamics, reviving Carnot's ignored ideas and shaping the field Kelvin and Clausius completed.
The ideal-gas and gas-density tools here use the equation in the form Clapeyron assembled.
Portrait: a stylized blueprint-line rendering, not a photograph.
Contributions in the toolbox
- 1834
Combined ideal gas equation PV = nRT.
→ SCFM ⇄ ACFM - 1834
Combines the laws into PV = nRT.
→ Ideal Gas Law (PV = nRT)