Question
In: Chemistry
The Antoine Equation is often used to calculate the saturation pressure of a pure species at...
The Antoine Equation is often used to calculate the saturation pressure of a pure species at a given temperature. Use the thermodynamic knowledge you have gained to explain what thermodynamic properties the Antoine coefficients represent.
Solutions
Expert Solution
The Antoine equation is a vapor pressure equation and describes the relation between vapor pressure and temperature for pure components. The Antoine equation is derived from the Clausius-Clapeyron relation.
The Antoine equation is a simple 3-parameter fit to experimental vapor pressures measured over a restricted temperature range:
log P = A - [B/(T+C)]
where A, B, and C are "Antoine coefficients" that vary from substance to substance
Antoine Coefficients Relate Vapor Pressure to Temperature and are having values given in mmHg
queen_honey_blossom answered 2 years agoRelated Solutions
The Clausius-Clapeyron equation and the Antoine equation. The vapor pressure of a liquid can be written...
The Clausius-Clapeyron equation and the Antoine
equation. The vapor pressure of a liquid can be written in
the empirical form known as the Antoine equation, ln (p / p ◦ ) =
A1 − (A2 /(T + A3)) where A1, A2, and A3 are empirical constants
determined from measurements, and T is the temperature in
Kelvin.
(a) Starting with this equation, derive an equation for the
enthalpy of vaporization as a function of temperature.
(b) For ethanol (l), A1 =...
A pure species (decadane) has an equation of state: ??/?? = 1-?′? + ?′? 2 ....
A pure species (decadane) has an equation of state: ??/?? =
1-?′? + ?′? 2 . Here, B’ and C’ are functions of temperature only
and their values are: 1.2 x 10-7 Pa-1 and 3.2 x 10-14 Pa-2
respectively at 300 K. Calculate decadane’s fugacity and fugacity
coefficient at 25 bar and 300 K. (20 points). What kind of
intermolecular interactions exist at these conditions? Explain
Given cyclopentane at 1000kPa, calculate the following: a) The saturation temperature associated with the pressure that...
Given cyclopentane at 1000kPa, calculate the following:
a) The saturation temperature associated with the pressure that
you were given, assuming that the system is in vapour-liquid
equilibrium. Use an equation of state method to solve this
problem.
b) The molar volume of the vapour and liquid phase.
d) The fugacity at saturation.
Considering the equilibrium conditions, calculate the saturation pressure (Psat) and the volumes of the liquid and...
Considering the equilibrium conditions, calculate the saturation
pressure (Psat) and the volumes of the liquid and steam
phases for 322K methyl chloride. Use the Redlich-Kwong equation of
state.
Data: Tc = 416.3K Pc = 65.9 atm w = 0.153
At 35ºC, the vapor pressure of pure water is 42.2 torr. Calculate the vapor pressure of...
At 35ºC, the vapor pressure of pure water is 42.2 torr.
Calculate the vapor pressure of water at this temperature in a
solution that has a concentration of 6.5 M of NaCl. The density of
the solution is 1.09 g/mL
Calculate the equilibrium vapor phase composition of a liquid hexane–water mixture at 50 °C, assuming that hexane and water are completely immiscible. The vapor pressures of the pure components can be described by the Antoine equation:
Calculate the equilibrium vapor phase composition of a liquid hexane–water mixture at 50 °C, assuming that hexane and water are completely immiscible. The vapor pressures of the pure components can be described by the Antoine equation:
Draw an oxygen saturation curve for hemoglobin (pressure of O2 versus saturation (y)) with physiological levels...
Draw an oxygen saturation curve for hemoglobin (pressure of O2
versus saturation (y)) with physiological levels of CO2 and 2,3-BPG
at biological pH. Now using arrows to indicate which direction it
moves, draw the shift in this curve when:
a) There is a decrease in CO2
b) There is an increase in 2,3-BPG
c) There is an increase in pH
d) Hemoglobin experiences a loss of quaternary structure (breaks
up into monomers)
Can you please differentiate the Antoine Equation with respect to temperature? ie dPsat/dT
Can you please differentiate the Antoine Equation with respect
to temperature? ie dPsat/dT
use experimental equilibrium data and antoine equation to draw the equilibrium curve, and compare the results,...
use experimental equilibrium data and antoine equation
to draw the equilibrium curve, and compare the results, what is
antoine's equation and how do I use it
Could you please do a unit analysis on Riedel and Antoine equation to determine the units...
Could you please do a unit analysis on Riedel and Antoine
equation to determine the units of the empirical coefficients.
Pressures in kPa and temperatures in Kelvin.
Riedel equation : lnP(T) = Ar + Br/T + Cr.ln(T) + Dr.T6
Antoine equation: lnP(T) = Aa - Ba/(Ca+T)
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