States of Matter 0.0 / 5 ? ChemistryPrinciples of ChemistryIGCSEEdexcel Created by: isabelsamCreated on: 07-02-16 21:55 Solids strong forces of attractioon between particles close together fixed positions regular lattice arrangement particles don't move definite shape and volume do not flow vibrate hotter they become, they more the particles vibrate 1 of 4 Liquids weak force of attraction between particles randomly arranged free to move stick closely together definte volume do not have a definte shape constantly move in random motion hotter they get, faster they move 2 of 4 Gases very weak forces of attraction between particles free to move far apart travel in straight lines do not have definite shape do not have definite volume always fill a container move constantly with random motion hotter it gets, faster it moves expand or pressure increased if heated 3 of 4 Changing State solid is heated particles gain energy vibrate more weakens forces that hold solid togetehr makes solid expand at certain temperatures, particles have enough energy to break free called MELTING solid turns into liquid liquid is heated particles gain more energy particles move fatser weaken and breaks bonds at certain temperatures, particles have enough energy to break their bonds called EVAPORATING liquid turns into gas 4 of 4
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