What you are given
- Temperature: 25
Formula: log10(P[bar]) = A − B/(T[K] + C)
Physical
How do you calculate vapor pressure & rotovap?
Antoine vapor pressure of a solvent, and the boiling point at each vacuum setpoint. The relationship used is log10(P[bar]) = A − B/(T[K] + C).
Worked example
Every number below is computed by the calculator, not typed in
The working
- Antoine:
log10(P) = A − B/(T + C)=4.6543 − 1435.264/(298.15 − 64.848) - Pressure:
P=0.0318 bar
Water at 25 °C: 31.8 mbar (23.8 mmHg)
Do it with your own numbers.
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