The vapor pressure of SeF4 is 522mmHg at 95°C and (5.8800x10^2)mmHg at (1.20x10^2)°C. What is the AHvap in kJ/mol at (1.20x10^2)°C? Express your answer to three significant figures. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: Answer x10 units

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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.