LiquidsBoiling Point and External Pressure31Choose the best answerFor pure water to boil at 110°C, the external pressure must be:ALess than 760 mmHgBGreater than 760 mmHgCExactly 760 mmHgDZero Like 0 Discuss 0Share
LiquidsVapour Pressure of Water32Choose the best answerThe equilibrium vapour pressure of water at 100°C at sea level is approximately:A260 mmHgB760 mmHgC1074 mmHgD1489 mmHg Like 0 Discuss 0Share
LiquidsBoiling Points of Group 15 Hydrides33Choose the best answerWhich Group 15 hydride has the highest boiling point?ANH₃BPH₃CAsH₃DSbH₃ Like 0 Discuss 0Share
LiquidsLondon Dispersion Forces34Choose the best answerWhich substance has the strongest intermolecular forces?AH₂BI₂CCl₂DCH₄ Like 0 Discuss 0Share
LiquidsCondensation35Choose the best answerConversion of vapour into liquid is called:ACrystallizationBVaporizationCEvaporationDCondensation Like 0 Discuss 0Share