34.6°C 78.3°C 100°C 800 760 600- Diethyl ether Ethyl alcohol (ethanol) Water 400 200 Ethylene glycol 20 40 60 80 100 Temperature (°C) Vapor pressure (torr)
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.
Use the vapor-pressure curve in Figure 11.22 to estimate the external pressure under which ethyl alcohol will boil at 40°C.
______torr
Figure 11.22.
What is the normal boiling point of diethly ether? ______Centegrade
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