ocr: 3. CH111 FINAL 1986 PAGE3 .5. The boiling point of any liquid is: (a) 100'C (b) the temperature ar which as many molecuies leave the liquid as return to ir (c) Che temperature at which the vapor pressure is equal to the external pressure (d) the temperature et which no molecules can return to the bulk of the liquid 17. The triple point is ia) the temperature above which the liquid phase cannot exist (b) - usually found at a temperature very close to the normal boiling point (c) the temperature at which the vapar pressure of a liquid is three times the value at 25°C (d) the value of temperature ...