# Antoine Equation - Example Parameters - Example Calculation

Example Calculation

The normal boiling point of ethanol is TB = 78.32 °C.

(760 mmHg = 101.325 kPa = 1.000 atm = normal pressure)

This example shows a severe problem caused by using two different sets of coefficients. The described vapor pressure is not continuous—at the normal boiling point the two sets give different results. This causes severe problems for computational techniques which rely on a continuous vapor pressure curve.

Two solutions are possible: The first approach uses a single Antoine parameter set over a larger temperature range and accepts the increased deviation between calculated and real vapor pressures. A variant of this single set approach is using a special parameter set fitted for the examined temperature range. The second solution is switching to another vapor pressure equation with more than three parameters. Commonly used are simple extensions of the Antoine equation (see below) and the equations of DIPPR or Wagner.

### Other articles related to "example calculation, calculation":

Lydersen Method - Example Calculation
... Acetone is fragmented in two different groups, one carbonyl group and two methyl groups ... For the critical volume the following calculation results ...
Absolute Thermal Resistance - Explanation From An Electronics Point of View - Example Calculation
... Suppose the engineer wishes to know how much power he can put into the transistor before it overheats ... The calculations are as follows ...
Calculation - Comparison To Computation
... In English, calculation involves numbers and the word usually connotes a simple process, but computation may be done by applying specific rules, with or ... Calculation is a prerequisite for computation ... The difference in the meaning of calculation and computation appears to originate from the late medieval period ...

### Famous quotes containing the word calculation:

Common sense is the measure of the possible; it is composed of experience and prevision; it is calculation appled to life.
Henri-Frédéric Amiel (1821–1881)

“To my thinking” boomed the Professor, begging the question as usual, “the greatest triumph of the human mind was the calculation of Neptune from the observed vagaries of the orbit of Uranus.”
“And yours,” said the P.B.
Samuel Beckett (1906–1989)