The three states of matter are solids, liquids, and gases. Almost all things can exist as only one. However one example that can be all three is h2O better known as water. It can be frozen into a solid, boiled to a gases state, and through condensation it turns into a liquid. According to Kinetic theory all matter is made up of tiny particles. these tiny particles are in constant, random, straight-line motion. The motion is always interrupted by the collision of particles. The speed of the particles depends on the temperature. The particles are able to move freely. Gases are easily compressible but also easily expandable. This causing the gas to take the shape of its container. The conversion between pressures is: 1 atm= 760 mm Hg = 760 torr = 101.3 kPa. The three gas laws are boyle's law (P1V1=P2V2), Charles' law (V1/T1=V2/T2), and Gay-Lussac's law (P1/T1=P2/T2). There is also the combined gas law (P1*V1/T1=P2*V2/T2) and the ideal gas law (PV=nRT).
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