Homework Answers
(1) CH3COOCH3 has strongest intermolecular attractive forces.
(2) The vapour pressure of C2H5OH at 40°c would be lesser than 400 torr.
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Use the following vapor pressure data to answer the questions: VaporTemperature, Pressure, torr Liquid 400 63.5 CH3COoC...
figure 1 Figure 2 Liquid ethanol mm P increasing P = equilibrium vapor pressure P=0 Add...
figure 1
Figure 2
Liquid ethanol mm P increasing P = equilibrium vapor pressure P=0 Add System comes to equilibrium ethanol Evacuated flask, pressure zero Molecules begin to vaporize, pressure increases Molecules leave and enter liquid at equal rates, pressure reaches steady-state value 34.6 °C 78.3°C 100 °C Normal boiling point Diethyl ether Vapor pressure (torr) Ethyl alcohol (ethanol) Water Ethylene glycol 100 20 40 60 80 Temperature (°C) Copyright 2009 Pearson Prentice Hall,Inc. Click on: (Figure 2) and study...
1) The vapor pressure of liquid cobalt is 400. mm Hg at 3.03×103 K. Assuming that...
1) The vapor pressure of liquid cobalt is 400. mm Hg at 3.03×103 K. Assuming that ΔHvap for Co (450 kJ/mol) does not change significantly with temperature, calculate the vapor pressure of liquid Co at 3.07×103 K. 2) The vapor pressure of methyl acetate (CH3COOCH3) has been measured over a range of temperatures. (a) Which of the following should give a linear plot (temperatures in K)? On the x-axis: _____T or lnT or 1/T On the y-axis: _____P or lnP...
This graph shows how the vapor pressure of three liquids varies with temperature: vapor pressure, torr...
This graph shows how the vapor pressure of three liquids varies with temperature: vapor pressure, torr isobutyl alcohol octane acetic acid temperature, "c Use the graph to answer the following questions: most volatile: choose one Which liquid is the most volatile? Which is the least volatile? laat wala Phancen = Relating vapor pressure to vaporization vapor pressure - isobutyl alcohol -octane -acetic acid temperature, "c Use the graph to answer the following questions: most volatile: choose one Which liquid is...
Octane has a vapor pressure of 40.0 torr at 45.1°C. What would be its vapor pressure...
Octane has a vapor pressure of 40.0 torr at 45.1°C. What would be its vapor pressure at 104.0°C? Heat of vaporization () of octane 39 kJ/mol. 200. torr 300. torr 400. torr 500. torr
This graph shows how the vapor pressure of three liquids varies with temperature: vapor pressure, torr...
This graph shows how the vapor pressure of three liquids varies with temperature: vapor pressure, torr benzene - methanol - isopropyl acetate temperature, °C Use the graph to answer the following questions: most volatile: choose one - Which liquid is the most volatile? Which is the least volatile? least volatile: choose one benzene: I°C What is the normal boiling point of each liquid? he within 10 of the exact methanol: vapor pressure - benzene -methanol isopropyl acetate temperature, °C Use...
Liquid A is known to have a lower viscosity and lower vapor pressure than Liquid B....
Liquid A is known to have a lower viscosity and lower vapor pressure than Liquid B. Use these facts to predict the result of each experiment in the table below, if you can. experiment predicted outcome F will be greater than FB 40.0 mL of Liquid A are poured into a beaker, and 40.0 mL of Liquid B are poured F will be less than FB into an identical beaker. Stirrers in each beaker are connected to motors, and the...
Naphthalene, C10H8, melts at 80.0 ˚C; the vapor pressure of the solid is 1.00 torr at 52.6 ˚C, and that of the liquid is...
Naphthalene, C10H8, melts at 80.0 ˚C; the vapor pressure of the solid is 1.00 torr at 52.6 ˚C, and that of the liquid is 10.0 torr at 85.8 ˚C and 40.0 torr at 119.3 ˚C. Calculate: (a) the enthalpy of vaporization, the normal boiling point, and the entropy of vaporization at the boiling point; (b) the vapor pressure at the melting point (Hint: liquid and solid are in equilibrium there)
Graph the following vapor pressure data for CCl4. Use your graph to determine the normal boiling...
Graph the following vapor pressure data for CCl4. Use your graph to determine the normal boiling point of the liquid. Temperature (°C): 20.0, 40.0, 60.0, 70.0, 80.0, 90.0, 100.0 Vapor Pressure (torr): 91.0, 213.0, 444.3, 617.4, 836.0, 1110, 1459
Which of the following are TRUE statements regarding evaporation, boiling, and vapor pressure? Select as many...
Which of the following are TRUE statements regarding evaporation, boiling, and vapor pressure? Select as many as are applicable however points will be deducted for incorrect answers. Select one or more: The standard boiling point occurs when the vapor pressure of a compound equals 1 bar The rate of evaporation at temperatures below the boiling point is dependent on surface area The vapor pressure at dynamic equilibrium in a closer container does not depend on the amount of liquid, as...
vapor pressure, torr This graph snows how the vapor pressure of three liquids varies with temperature:...
vapor pressure, torr This graph snows how the vapor pressure of three liquids varies with temperature: 900- 800- 700- 600- 500- 400- 300- piperidine pyrrole acetylacetone 200- 100- 0 10 110 120 130 140 temperature, °C Use the graph to answer the following ques Which liquid is the most volatile? most volatile: choose one Which is the least volatile? least volatile: choose one piperidine: C What is the normal boiling point of each liquid? Note: your answer must be within...
figure 1
Figure 2
Liquid ethanol mm P increasing P = equilibrium vapor pressure P=0 Add System comes to equilibrium ethanol Evacuated flask, pressure zero Molecules begin to vaporize, pressure increases Molecules leave and enter liquid at equal rates, pressure reaches steady-state value 34.6 °C 78.3°C 100 °C Normal boiling point Diethyl ether Vapor pressure (torr) Ethyl alcohol (ethanol) Water Ethylene glycol 100 20 40 60 80 Temperature (°C) Copyright 2009 Pearson Prentice Hall,Inc. Click on: (Figure 2) and study...
This graph shows how the vapor pressure of three liquids varies with temperature: vapor pressure, torr isobutyl alcohol octane acetic acid temperature, "c Use the graph to answer the following questions: most volatile: choose one Which liquid is the most volatile? Which is the least volatile? laat wala Phancen = Relating vapor pressure to vaporization vapor pressure - isobutyl alcohol -octane -acetic acid temperature, "c Use the graph to answer the following questions: most volatile: choose one Which liquid is...
This graph shows how the vapor pressure of three liquids varies with temperature: vapor pressure, torr benzene - methanol - isopropyl acetate temperature, °C Use the graph to answer the following questions: most volatile: choose one - Which liquid is the most volatile? Which is the least volatile? least volatile: choose one benzene: I°C What is the normal boiling point of each liquid? he within 10 of the exact methanol: vapor pressure - benzene -methanol isopropyl acetate temperature, °C Use...
Liquid A is known to have a lower viscosity and lower vapor pressure than Liquid B. Use these facts to predict the result of each experiment in the table below, if you can. experiment predicted outcome F will be greater than FB 40.0 mL of Liquid A are poured into a beaker, and 40.0 mL of Liquid B are poured F will be less than FB into an identical beaker. Stirrers in each beaker are connected to motors, and the...
Which of the following are TRUE statements regarding evaporation, boiling, and vapor pressure? Select as many as are applicable however points will be deducted for incorrect answers. Select one or more: The standard boiling point occurs when the vapor pressure of a compound equals 1 bar The rate of evaporation at temperatures below the boiling point is dependent on surface area The vapor pressure at dynamic equilibrium in a closer container does not depend on the amount of liquid, as...
vapor pressure, torr This graph snows how the vapor pressure of three liquids varies with temperature: 900- 800- 700- 600- 500- 400- 300- piperidine pyrrole acetylacetone 200- 100- 0 10 110 120 130 140 temperature, °C Use the graph to answer the following ques Which liquid is the most volatile? most volatile: choose one Which is the least volatile? least volatile: choose one piperidine: C What is the normal boiling point of each liquid? Note: your answer must be within...
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