(a) How does the average kinetic energy of molecules comparewith the average energy of attraction between moleculesin solids, liquids, and gases? (b) Why does increasingthe temperature cause a solid substance to change in successionfrom a solid to a liquid to a gas? (c) What happensto a gas if you put it under extremely high pressure?
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.
(a) How does the average kinetic energy of molecules compare
with the average energy of attraction between molecules
in solids, liquids, and gases? (b) Why does increasing
the temperature cause a solid substance to change in succession
from a solid to a liquid to a gas? (c) What happens
to a gas if you put it under extremely high pressure?
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