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Mean Speed Calculator

Compute the Maxwell–Boltzmann mean speed v_avg = √(8RT/(πM)).

Input Data

Input Temperature T.
K
Input Molar mass M.
kg/mol

Results

468.2752m/s
v_avg = √(8RT/(πM)) = 468.2752 m/s

At a glance:Mean Speed Calculator: enter parameters to compute results; complements related calculators.

Formula

v_avg = √(8 R T / (π M))

R = 8.314 J/(mol·K)

How to Use

  1. Enter temperature T (K).
  2. Enter molar mass M (kg/mol).
  3. Get mean speed v_avg.

Case Studies

Air at 300 K

v_avg ≈ 468 m/s, between v_p and v_rms.

FAQ

Order of the three speeds?

v_p < v_avg < v_rms.

Related Tools

References

Content review: Calculatorism Science Team. Formula and numeric tests verified; results for reference only.

Found a problem with the results?

If this calculator's result is wrong, or you have any question about the calculation logic, please let us know. You are viewing:Mean Speed Calculator/physics/average-speed-maxwell)。