Homework Answers
we get general relation B.P 
H
vaporization 1 / Vapor
pressure
From this relation , we can solve given problem.
| observation | Question |
| The enthalpy of vaporization of substance C is smaller than substance D. |
Which has the higher boiling point ?
|
| At 1 atm pressure, substance A boils at 142 0 C and substance B boils at 119 0 C |
Which has the higher vapor pressure ?
|
| A t 73 0 C , substance E has a vapor pressure of 125 torr and substance F has a vapor pressure of 135 torr. |
Which has the higher enthalpy of vaporization ?
|
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Use the observation in the first column to answer the question in the second column. observation...
GASES, LIQUIDS AND SOLIDS Understanding the connection between ... Use the observation in the first column...
GASES, LIQUIDS AND SOLIDS Understanding the connection between ... Use the observation in the first column to answer the question in the second column. observation question Which has a higher enthalpy of vaporization? At 36 °C, Substance C has a Substance C vapor pressure of 116. torr and Substance D has a vapor Substance D Neither, C and D have the same enthalpy of vaporization pressure of 136. torr It's impossible to know without more information Which has the higher...
At 1 atm pressure, Substance E boils at - 50. degree C and Substance F boils...
At 1 atm pressure, Substance E boils at - 50. degree C and Substance F boils at - 87 degree C. Which has a higher enthalpy of vaporization? Substanc E Substance F Neither, E and F have the same enthalpy of vaporization. It's impossible to know without more information. At 17 degree C, substance C has a vapor pressure of 125. torr and Substance D has a vapor pressure of 115. torr Which has a higher boiling point? Substance C...
Calculate the vapor pressure of 3-pentanone (b.p. 102.0 °C) at the gas chromatography column temperature of...
Calculate the vapor pressure of 3-pentanone (b.p. 102.0 °C) at the gas chromatography column temperature of 96.0"C using the form of the Clausius-Clapeyron equation shown below, P1 P. vap where R is the ideal gas constant, ???? is the enthalpy of vaporization, T1 and T2 are two different temperatures, and P1 and P2 are the vapor pressures at the respective temperatures. The enthalpy of vaporization can be estimated using Trouton's rule, ??'vap-(88 J mol-1 K-1), Tp. Number Torr Calculate the...
... Turkcell LTE 14:49 %22 Back Open in Safari Question 13 - Normal boiling point of...
... Turkcell LTE 14:49 %22 Back Open in Safari Question 13 - Normal boiling point of Z (C) is 73° C. - Vapor pressure of Q (l) at 60° C is 820 mmHg. 1. Q is less volatile than Z. II. Z has a higher molar enthalpy of vaporization than Q. III. Q boils at a higher temperature than Z, at 1 atm. Which of the given statements is/are true? Your answer: O Only! Only 11 23 Home Courses Tasks...
1. The normal boiling point of benzene (i.e., at 1 atm) is 80.09 °C. The molar...
1. The normal boiling point of benzene (i.e., at 1 atm) is 80.09 °C. The molar enthalpy of vaporization is 30.72 kJ mol . Assuming that AvapHm and AvapSm stay constant at their values at 80.09°C, calculate the values of AvapGm at 75.0 °C, 80.09 °C and 85.0 °C. Given your calculated values, do you still expect benzene to spontaneously condense at 75.0 °C and to spontaneously evaporate at 85.0°C? -1 2. The vapor pressure of a liquid was measured...
PLEASE ANSWER QUESTION 6 & 21 PLEASE! 6. (5 pts.) A liquid with an enthalpy of...
PLEASE ANSWER QUESTION 6 & 21 PLEASE!
6. (5 pts.) A liquid with an enthalpy of vaporization, AHx, of 32.80 KJ/mole has a normal boiling point at 39.20°C. Its vapor pressure at 57.35°C is: (a) 1728 Torr (b) 2644 Torr (C) 2185 Torr (d) 1521 Torr 21. (5pts) The unit cell for a compound is shown below: The empirical formula for this compound is: (a) AB (b) A6B8 (c) AB (d) AB2
Please answer parts E-H and show work/solution ANSWER E-H E F G H ANSWER PARTS E, F, G, AND H.......
Please answer parts E-H and show
work/solution
ANSWER E-H
E F G H
ANSWER PARTS E, F, G, AND H........
8. We have two "named" equations which allow us to quantify the pressure- temperature relationship of a two-phase equilibrium, the Clausius equation, A, and the Clausius-Clapeyron equation, B din P ΔΗ dP AS A: dT RT2 The Clausius equation is an exact result for a one-component system, derived with no approximations, while the Clausius-Clapeyron equation has some constraints. We will...
hw assignment 3 Question 3 - Vapor pressure of X (L) at 74° C is 870...
hw assignment 3
Question 3 - Vapor pressure of X (L) at 74° C is 870 mmHg. - Normal boiling point of Y (C) is 85° C. 1. Normal boiling point of X is higher than 74° C. II. Y has higher molar enthalpy of vaporization than X. III. X is more volatile than Y. Which of the given statements is/are true? Your answer: Only Only III I and II II and III I, II, and III
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...
Review Constants Pe Consider the following two substances and their vapor pressures at 298 K All...
Review Constants Pe Consider the following two substances and their vapor pressures at 298 K All liquids evaporate to a certain extent. The pressure exerted by the gas phase in equilibrium with the liquid is called vapor pressure. Prap. The vapor pressure of a particular substance is determined by the strength of the intermolecular forces. But for any given substance, the vapor pressure only changes with temperature. The Clausius-Clapeyron equation expresses the relationship between vapor pressure and temperature: Substance Vapor...
GASES, LIQUIDS AND SOLIDS Understanding the connection between ... Use the observation in the first column to answer the question in the second column. observation question Which has a higher enthalpy of vaporization? At 36 °C, Substance C has a Substance C vapor pressure of 116. torr and Substance D has a vapor Substance D Neither, C and D have the same enthalpy of vaporization pressure of 136. torr It's impossible to know without more information Which has the higher...
At 1 atm pressure, Substance E boils at - 50. degree C and Substance F boils at - 87 degree C. Which has a higher enthalpy of vaporization? Substanc E Substance F Neither, E and F have the same enthalpy of vaporization. It's impossible to know without more information. At 17 degree C, substance C has a vapor pressure of 125. torr and Substance D has a vapor pressure of 115. torr Which has a higher boiling point? Substance C...
Calculate the vapor pressure of 3-pentanone (b.p. 102.0 °C) at the gas chromatography column temperature of 96.0"C using the form of the Clausius-Clapeyron equation shown below, P1 P. vap where R is the ideal gas constant, ???? is the enthalpy of vaporization, T1 and T2 are two different temperatures, and P1 and P2 are the vapor pressures at the respective temperatures. The enthalpy of vaporization can be estimated using Trouton's rule, ??'vap-(88 J mol-1 K-1), Tp. Number Torr Calculate the...
... Turkcell LTE 14:49 %22 Back Open in Safari Question 13 - Normal boiling point of Z (C) is 73° C. - Vapor pressure of Q (l) at 60° C is 820 mmHg. 1. Q is less volatile than Z. II. Z has a higher molar enthalpy of vaporization than Q. III. Q boils at a higher temperature than Z, at 1 atm. Which of the given statements is/are true? Your answer: O Only! Only 11 23 Home Courses Tasks...
1. The normal boiling point of benzene (i.e., at 1 atm) is 80.09 °C. The molar enthalpy of vaporization is 30.72 kJ mol . Assuming that AvapHm and AvapSm stay constant at their values at 80.09°C, calculate the values of AvapGm at 75.0 °C, 80.09 °C and 85.0 °C. Given your calculated values, do you still expect benzene to spontaneously condense at 75.0 °C and to spontaneously evaporate at 85.0°C? -1 2. The vapor pressure of a liquid was measured...
PLEASE ANSWER QUESTION 6 & 21 PLEASE!
6. (5 pts.) A liquid with an enthalpy of vaporization, AHx, of 32.80 KJ/mole has a normal boiling point at 39.20°C. Its vapor pressure at 57.35°C is: (a) 1728 Torr (b) 2644 Torr (C) 2185 Torr (d) 1521 Torr 21. (5pts) The unit cell for a compound is shown below: The empirical formula for this compound is: (a) AB (b) A6B8 (c) AB (d) AB2
Please answer parts E-H and show
work/solution
ANSWER E-H
E F G H
ANSWER PARTS E, F, G, AND H........
8. We have two "named" equations which allow us to quantify the pressure- temperature relationship of a two-phase equilibrium, the Clausius equation, A, and the Clausius-Clapeyron equation, B din P ΔΗ dP AS A: dT RT2 The Clausius equation is an exact result for a one-component system, derived with no approximations, while the Clausius-Clapeyron equation has some constraints. We will...
hw assignment 3
Question 3 - Vapor pressure of X (L) at 74° C is 870 mmHg. - Normal boiling point of Y (C) is 85° C. 1. Normal boiling point of X is higher than 74° C. II. Y has higher molar enthalpy of vaporization than X. III. X is more volatile than Y. Which of the given statements is/are true? Your answer: Only Only III I and II II and III I, II, and III
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...
Review Constants Pe Consider the following two substances and their vapor pressures at 298 K All liquids evaporate to a certain extent. The pressure exerted by the gas phase in equilibrium with the liquid is called vapor pressure. Prap. The vapor pressure of a particular substance is determined by the strength of the intermolecular forces. But for any given substance, the vapor pressure only changes with temperature. The Clausius-Clapeyron equation expresses the relationship between vapor pressure and temperature: Substance Vapor...
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