Convert Moles per hour to Millimoles per second

Convert Moles per hour (mol/h) to Millimoles per second (mmol/s) instantly and accurately.

Moles per hour (mol/h)
Millimoles per second (mmol/s)

Conversion Formula

mmol/s = mol/h × 0.2777777778

About Moles per hour

The mole per hour (mol/h) equals 1/3600 mol/s ≈ 2.778×10⁻⁴ mol/s, practical for pilot-plant flow chemistry, laboratory gas manifold flow, and hydrogen production by small electrolysers. A 1 kW alkaline electrolyser at 100% Faradaic efficiency produces ≈18 mol H₂/h; bench-scale packed-bed reactors handle feed rates in mol/h. 1 mol/h ≈ 2.778×10⁻⁴ mol/s ≈ 0.002205 lb-mol/h.

About Millimoles per second

The millimole per second (mmol/s) equals 10⁻³ mol/s, used in mid-scale continuous-flow chemistry and laboratory reactor design. A syringe pump delivering 10 mL/min of a 6 mmol/L reagent solution delivers 1 mmol/s to the reactor; 1 mmol/s is also the millicatalytic unit (mkat) used as an aggregate activity measure in industrial bioprocess monitoring. 1 mmol/s = 10⁻³ mol/s = 3.6 mol/h.

Quick Reference Table

Moles per hour (mol/h)Millimoles per second (mmol/s)
1 mol/h0.277778 mmol/s
2 mol/h0.555556 mmol/s
5 mol/h1.38889 mmol/s
10 mol/h2.77778 mmol/s
25 mol/h6.94444 mmol/s
50 mol/h13.8889 mmol/s
100 mol/h27.7778 mmol/s

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