4. The vapor pressure of methanol is 1 atm at 65 °C, 2 atm at 84 °C, 5 atm at 112 °C, 10 atm at 138 °C, and 20 atm at 16

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4 The Vapor Pressure Of Methanol Is 1 Atm At 65 C 2 Atm At 84 C 5 Atm At 112 C 10 Atm At 138 C And 20 Atm At 16 1 (44.72 KiB) Viewed 68 times

4. The vapor pressure of methanol is 1 atm at 65 °C, 2 atm at 84 °C, 5 atm at 112 °C, 10 atm at 138 °C, and 20 atm at 168 °C. What is the normal boiling point of methanol? 5. Referring to the given vapor pressure vs. temperature figure, answer the questions below. a) If the pressure is 100 torr, which liquid boils at the highest temperature? b) Estimate the boiling point of ethanol at 200 torr. Vapor pressure (torr) 800 760 600 400 200 34.6°C Diethyl ether 0 20 Normal boling point 78.3°C Ethyl alcohol (ethanol) 40 Temperature (c) c) At approximately what pressure is the boiling point of water 40 °C? 60 6. Review the terms adhesion and cohesion. Answer the questions below. a) Under what conditions would a liquid demonstrate a capillary rise? b) Under what conditions would a liquid demonstrate a capillary depression? 100 C Water Ethylene glycol 80 100