IGCSE›Edexcel IGCSE Chemistry›Mind maps1.1 States of MatterEdexcel IGCSE Chemistry: Mind mapStudy pack PDFAlso for this subtopic:Revision notesFlashcardsSubtopic testCover factsThree statesSolid: regular, tightly packed, vibrate in placeLiquid: random, close, slide past each otherGas: random, far apart, move rapidlyEnergy: solid lowest, gas highestChanging stateMelting: solid → liquidBoiling: liquid → gasCondensing: gas → liquidSubliming: solid → gas, skips liquidEnergy gained → movement and separation increaseDiffusionNet movement from high to low concentrationCaused by random particle movementBromine vapour spreads to fill a gas jarSlower in liquids: particles are closerStates of Matterparticles and solutionsSolutionsSolute dissolves in the solventSolute + solvent = solutionSaturated: no more solute dissolves at that temperatureSolubilityMass dissolving in 100 g of solventUnits: g per 100 g of solventUsually rises with temperatureRead off the curve at the temperatureExam tipsDescribe arrangement, movement and energyEvaporated substances have not disappearedScale solubility to per 100 g