1Fick's law relates to:ARadiationBHeat conductionCFluid flowDMolecular diffusionView AnswerDiscussWorkspaceReportSaveEasy
2Molecular diffusion in gases is generally faster than in liquids because:AGases are denserBGases have no moleculesCLiquids are hotterDMolecules in gases are farther apart and move more freelyView AnswerDiscussWorkspaceReportSaveMedium
3Liquid–liquid extraction separates components by differences in:ABoiling pointBMagnetismCParticle sizeDSolubility in two immiscible liquidsView AnswerDiscussWorkspaceReportSaveEasy
4An azeotrope is a mixture that:ABoils at constant compositionBCannot be heatedCSeparates easily by distillationDHas no vapour pressureView AnswerDiscussWorkspaceReportSaveEasy
5Crystallisation requires the solution to be:AAt boiling point onlyBUnsaturatedCDiluteDSupersaturatedView AnswerDiscussWorkspaceReportSaveEasy