LiquidsEffects of Intermolecular Forces26Choose the best answerStronger intermolecular forces generally increase:AHeat required for phase changeBBoiling pointCViscosityDAll of these Like 0 Discuss 0Share
LiquidsBoiling Point27Choose the best answerA liquid boils when:AIts vapour pressure equals the external pressureBIts vapour pressure is always less than atmospheric pressureCIts vapour pressure becomes zeroDIts intermolecular forces disappear completely Like 0 Discuss 0Share
LiquidsLatent Heat of Condensation28Choose the best answerWhich causes the most severe burn under comparable contact conditions?AWater at 90°CBWater at 80°CCSteam at 100°CDWater at 20°C Like 0 Discuss 0Share
LiquidsCondensation29Choose the best answerThe conversion of vapour into liquid is called:ACrystallizationBVaporizationCEvaporationDCondensation Like 0 Discuss 0Share
LiquidsVapour Pressure of Water30Choose the best answerAt 100°C, the equilibrium vapour pressure of water is approximately:A55 mmHgB355 mmHgC760 mmHgD1489 mmHg Like 0 Discuss 0Share