How to use the gas diffusion time ratio calculator
Compare time for two gases to travel the same distance. Enter molar mass 1, molar mass 2 in the fields above; the distance fraction travelled by gas 1 is computed instantly and plotted on the chart so you can see how the answer changes.
Formula
Variables
- M1 — Molar mass 1 (g/mol)
- M2 — Molar mass 2 (g/mol)
Worked example
With molar mass 1 = 17.03 g/mol, molar mass 2 = 36.46 g/mol, the calculator gives distance fraction travelled by gas 1 ≈ 0.5940225.
Frequently asked questions
What is the formula for the gas diffusion time ratio calculation?
Distance fraction travelled by gas 1 = √(M2) / (√(M1)+√(M2)). Here M1 is molar mass 1 (g/mol), M2 is molar mass 2 (g/mol).
What inputs do I need for the gas diffusion time ratio calculator?
You need molar mass 1 in g/mol, molar mass 2 in g/mol. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use this calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.