Diffusion Coefficients: H2
N2#gas-gas#300C to O2#gas-gas#0C
Binary diffusion coefficients for gas-gas, gas-liquid (dissolved gas in water), and liquid-liquid (solute at infinite dilution) systems. Gas-gas D in cm²/s at 1 atm across temperatures -73 to 400°C; gas-liquid D in cm²/s (~1e-5 scale); liquid-liquid in water D in m²/s (~1e-9 scale); liquid-liquid in organic solvents D in cm²/s (~1e-5 scale). Per CRC Handbook 97th Ed., Perry's CEH 8th Ed., Incropera, Marrero & Mason, Cussler.
| species A | species B phase T | D cm2 per s (cm2/s) | estimation method | phase | pressure atm (atm) | species B | temperature C (C) |
|---|---|---|---|---|---|---|---|
| H2 | N2#gas-gas#300C | 2.423 | experimental | gas-gas | 1 | N2 | 300 |
| H2 | N2#gas-gas#400C | 3.196 | experimental | gas-gas | 1 | N2 | 400 |
| H2 | Ne#gas-gas#-73C | 0.572 | experimental | gas-gas | 1 | Ne | -73 |
| H2 | Ne#gas-gas#0C | 0.982 | experimental | gas-gas | 1 | Ne | 0 |
| H2 | Ne#gas-gas#100C | 1.684 | experimental | gas-gas | 1 | Ne | 100 |
| H2 | Ne#gas-gas#200C | 2.541 | experimental | gas-gas | 1 | Ne | 200 |
| H2 | Ne#gas-gas#20C | 1.109 | experimental | gas-gas | 1 | Ne | 20 |
| H2 | Ne#gas-gas#300C | 3.541 | experimental | gas-gas | 1 | Ne | 300 |
| H2 | Ne#gas-gas#400C | 4.677 | experimental | gas-gas | 1 | Ne | 400 |
| H2 | O2#gas-gas#0C | 0.697 | experimental | gas-gas | 1 | O2 | 0 |
What else is in Engineering Database
AI built for engineering. Searches the engineering database, performs calculations, gives source-backed engineering insights.
Get started for free ↗Reference Data375 engineering tablesMaterial properties, pipe and shape dimensions, code tables, and electrical ratings across mechanical, civil, chemical, electrical, materials, and manufacturing engineering.
Browse dataCalculatorsDeterministic engineering calculatorsSizing, checking, and conversion tools that run against the reference tables. Inputs are code-compliant, outputs are traceable to the source standard.
Browse calculators