Homework Answers
In this, statement (1), (2), (3) and (5) are true about the relationship between temperature and vapor pressure.
In this, statement (4), and (6) are false about the relationship between temperature and vapor pressure.
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18. 0/3 points Previous Answers GVSUChem 115v2 10.a.P.004. Check all that are true about the relationship...
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...
check each statement about the temperature, check each item that is a unit of pressure, which...
check each statement about the temperature, check each item that is
a unit of pressure, which of the following pairs of substances are
held together by hudrogen bonds, multiple choice, name the phase
16. Check each true statement about the temperature 0 K. The K stands for kilo. The K stands for Kelvin. This is a temperature that is suitable for biological processes. It is absolute zero. This temperature is the middle of the Kelvin scale. This is the coldest...
Think about intermolecular forces and the stronger the intermolecular force the more energy needed to separate the...
Think about intermolecular forces and the stronger the intermolecular force the more energy needed to separate the molecules. Just thinking about this, put the properties below in the correct category. Hints: Vapor pressure is high if it is easy for molecules to escape from a liquid into the gas phase. High surface tension means the liquid molecules do not separate easily Viscosity is the "thickness" of a liquid substance Strong intermolecular forces Weak intermolecular forces Answer Bank high boiling point...
Question 3 (4 points) The vapor pressure of a liquid is dependent on: the temperature of...
Question 3 (4 points) The vapor pressure of a liquid is dependent on: the temperature of the liquid and intermolecular forces of attraction in the liquid the temperature of the liquid and the surface area of the liquid only on the surface area of the liquid only the temperature of the liquid O only the forces of intermolecular attraction in the liquid Question 4 (4 points) If the atmospheric pressure over a sample of liquid is increased, the boiling point...
Which of the following changes would increase the vapor pressure of a liquid? i. An...
Which of the following changes would increase the vapor pressure of a liquid? i. An increase in temperature ii. An increase in the intermolecular forces in the liquid iii. An increase in the size of the open vessel containing the liquid a) i and ii only b) i and iii only c) i only d) ii only e) iii only If the rate of evaporation from the surface of a liquid exceeds...
oter 7 Reading Question 4 Part A Which of the following statements about vapor pressure is...
oter 7 Reading Question 4 Part A Which of the following statements about vapor pressure is true? View Available Hint(s) O Vapor pressure is caused by gas molecules returning to liquid form As temperature increases, vapor pressure decreases. Compounds with stronger attractive forces predict higher vapor pressures at a given temp e Compounds with higher boiling points have lower vapor pressures at a given temperature. Submit
Multiple Choice Identify the choice that best completes the statement or answers the question 34.6C 78.3 C 100°C S0...
Multiple Choice Identify the choice that best completes the statement or answers the question 34.6C 78.3 C 100°C S00 760 Normal boiling point 600 Diethyl ether Ethyl alcohol (ethanol) Water 400 200 Ethylene glycol 0 0 20 40 60 100 80 Temperature (C) Based on the figure above, the boiling point of water under an external pressure of0.493 atm is C. 80 a. 70 b. 60 90 c. d. Which one of the following has a definite shape and volume?...
Which of the following statements about the relationship between pressure and temperature is true? Increasing the...
Which of the following statements about the relationship between pressure and temperature is true? Increasing the temperature would make some of the gas escape from the balloon, decreasing the volume. As temperature increases, the volume of a gas decreases. As temperature increases, the volume of a gas also increases. The volume of a gas is affected by temperature changes, but it is not possible to predict how it is affected The volume of a gas is unaffected by temperature changes.
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...
1.Pentane (C5H12) has a surface tension of 1.61 x 10 ^ -2, while ethanol (C2H5OH) has...
1.Pentane (C5H12) has a surface tension of 1.61 x 10 ^ -2, while ethanol (C2H5OH) has a surface tension of 2.23 x 10 ^ -2, which would have the highest viscosity? A) pentane B) ethanol C) both have the same viscosity D) cannot be determined with the information provided 2.Which of the following is true for surface tension? l is a measure of the surface area exposed by the liquid ll increases with increasing intermolecular attraction forces lll decreases with...
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...
check each statement about the temperature, check each item that is
a unit of pressure, which of the following pairs of substances are
held together by hudrogen bonds, multiple choice, name the phase
16. Check each true statement about the temperature 0 K. The K stands for kilo. The K stands for Kelvin. This is a temperature that is suitable for biological processes. It is absolute zero. This temperature is the middle of the Kelvin scale. This is the coldest...
Think about intermolecular forces and the stronger the intermolecular force the more energy needed to separate the molecules. Just thinking about this, put the properties below in the correct category. Hints: Vapor pressure is high if it is easy for molecules to escape from a liquid into the gas phase. High surface tension means the liquid molecules do not separate easily Viscosity is the "thickness" of a liquid substance Strong intermolecular forces Weak intermolecular forces Answer Bank high boiling point...
Question 3 (4 points) The vapor pressure of a liquid is dependent on: the temperature of the liquid and intermolecular forces of attraction in the liquid the temperature of the liquid and the surface area of the liquid only on the surface area of the liquid only the temperature of the liquid O only the forces of intermolecular attraction in the liquid Question 4 (4 points) If the atmospheric pressure over a sample of liquid is increased, the boiling point...
oter 7 Reading Question 4 Part A Which of the following statements about vapor pressure is true? View Available Hint(s) O Vapor pressure is caused by gas molecules returning to liquid form As temperature increases, vapor pressure decreases. Compounds with stronger attractive forces predict higher vapor pressures at a given temp e Compounds with higher boiling points have lower vapor pressures at a given temperature. Submit
Multiple Choice Identify the choice that best completes the statement or answers the question 34.6C 78.3 C 100°C S00 760 Normal boiling point 600 Diethyl ether Ethyl alcohol (ethanol) Water 400 200 Ethylene glycol 0 0 20 40 60 100 80 Temperature (C) Based on the figure above, the boiling point of water under an external pressure of0.493 atm is C. 80 a. 70 b. 60 90 c. d. Which one of the following has a definite shape and volume?...
Which of the following statements about the relationship between pressure and temperature is true? Increasing the temperature would make some of the gas escape from the balloon, decreasing the volume. As temperature increases, the volume of a gas decreases. As temperature increases, the volume of a gas also increases. The volume of a gas is affected by temperature changes, but it is not possible to predict how it is affected The volume of a gas is unaffected by temperature changes.
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...
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