Water has a vapor pressure of 31.8 mm Hg at 30°C and a heat of vaporization of 40.657 kJ/mol. Using the Clausius-Clapeyron equation given below, determine the vapor pressure of water at 93°C in mm Hg . (R=8.3145 J/mol*K; T=K) ln P2/P1 = -ΔHvap/R(1/T2− 1/T1)
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
Water has a vapor pressure of 31.8 mm Hg at 30°C and a heat of vaporization of 40.657 kJ/mol. Using the Clausius-Clapeyron equation given below, determine the vapor pressure of water at 93°C in mm Hg . (R=8.3145 J/mol*K; T=K)
ln P2/P1 = -ΔHvap/R(1/T2− 1/T1)
The clausius-clapeyron equation is mainly used to find out the vapor pressure at a particular temperature. if the value of HVap and the vapor pressure of a liquid is known at another temperature. The clausius-clapeyron equation is represented as:
(1)
P1 and P2 = Vapor pressures of liquid at temperatures T1 and T2
HVap = Enthalpy of vaporization
R = Universal gas constant
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