LiquidsPhase Changes91Choose the best answerThe reverse process of vaporization is:ASublimationBFusionCCondensationDFreezing Like 0 Discuss 0Share
LiquidsVapour Pressure and Temperature92Choose the best answerVapour pressure of a liquid increases with:ATemperatureBIntermolecular-force strengthCMolecular attractionDDecreasing molecular kinetic energy Like 0 Discuss 0Share
LiquidsHydrogen Bonding in Water93Choose the best answerHydrogen bonding is more extensive in water than in HF mainly because:AFluorine forms no hydrogen bondsBFluorine is less electronegative than oxygenCOxygen is always positively chargedDEach H₂O molecule can participate in more hydrogen bonds Like 0 Discuss 0Share
LiquidsEvaporation94Choose the best answerEvaporation is:AExothermicBEndothermicCNon-spontaneousDIndependent of molecular energy Like 0 Discuss 0Share
LiquidsHydrogen Bonding95Choose the best answerNH₃ has an anomalously high boiling point compared with PH₃ and AsH₃ mainly because NH₃:AForms intermolecular hydrogen bondsBIs ionicCHas the greatest molar massDHas no lone pair Like 0 Discuss 0Share