LiquidsLiquid–Vapour Equilibrium6Choose the best answerAt the boiling point, coexisting liquid and vapour phases at equilibrium have the same:AAverage translational kinetic energyBPotential energyCMolecular separationDIntermolecular forces Like 0 Discuss 0Share
LiquidsLiquid–Vapour Equilibrium7Choose the best answerAt the boiling point, the average kinetic energy of molecules in the liquid and vapour phases is:AGreater in vapourBGreater in liquidCThe sameDZero in the liquid Like 0 Discuss 0Share
LiquidsRate of Evaporation8Choose the best answerWhich liquid has the lowest rate of evaporation at room temperature?ADiethyl etherBWaterCEthanolDGlycerol Like 0 Discuss 0Share
LiquidsBoiling and Latent Heat9Choose the best answerDuring boiling of a pure liquid at constant external pressure, supplying additional heat causes its boiling point to:AIncreaseBRemain constantCDecreaseDIncrease and then decrease Like 0 Discuss 0Share
LiquidsPhysical State and Boiling Point10Choose the best answerWhich substance is liquid at about 25°C and 1 atm?AH₂OBHFCHClDAll of these Like 0 Discuss 0Share