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Most Probable Speed Calculator

Compute the Maxwell–Boltzmann most probable speed v_p = √(2RT/M).

Input Data

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

Results

414.9981m/s
v_p = √(2RT/M) = 414.9981 m/s

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

Formula

v_p = √(2 R T / M)

R = 8.314 J/(mol·K), M: molar mass

How to Use

  1. Enter temperature T (K).
  2. Enter molar mass M (kg/mol).
  3. Get most probable speed v_p.

Case Studies

Air at 300 K

M≈0.029 kg/mol → v_p≈415 m/s.

FAQ

Relation to RMS speed?

v_p < v_avg < v_rms; v_rms = √(3RT/M).

Related Tools

References

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

Found a problem with the results?

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