Carbon tetrachloride,an organic solvent,has a molar heat of vaporization of 29.82 kJ/mol.If CCl4 has a normal boiling point of 3.50 × 102 K,what is its vapor pressure at 273 K? (R = 8.31 J/mol⋅K)

A) 19.3 mm Hg B) 42.2 mm Hg C) 59.3 mm Hg D) 108 mm Hg E) 359 mm Hg A) 19.3 mm Hg B) 42.2 mm Hg C) 59.3 mm Hg D) 108 mm Hg E) 359 mm Hg

Arrange Cl2,ICl,and Br2 in order from lowest to highest melting point.

A) Br2 2 B) Br2 2 2 2 D) Cl2 2 2 2 A) Br2 2 B) Br2 2 2 2 D) Cl2 2 2 2

Sulfur dioxide has an enthalpy of vaporization of 24.9 kJ/mol.At 205 K,SO2 has a vapor pressure of 30.3 mm Hg.What is the normal boiling point temperature of SO2? (R = 8.31 J/K.mol)

A) 263 K B) 278 K C) 291 K D) 308 K E) 345 K A) 263 K B) 278 K C) 291 K D) 308 K E) 345 K

Exam 9: Liquids and Solids

Iron packs in a body-centered cubic structure.If an iron atom has a radius of 126 pm,what is the distance between lattice points at two opposite corners of the unit cell? (Note: a line drawn between the points would go through the center of the unit cell)

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Question 1

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In which of the following pure solids is it necessary to break covalent bonds in order to make a liquid or gas?

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Question 2

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What is the correct method for determining the number of atoms in a face-centered cubic cell?

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Question 3

Correct Answer:

Verified

Carbon tetrachloride,an organic solvent,has a molar heat of vaporization of 29.82 kJ/mol.If CCl₄ has a normal boiling point of 3.50 × 10² K,what is its vapor pressure at 273 K? (R = 8.31 J/mol⋅K)

(Multiple Choice)

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Question 4

What is a correct method for determining the number of atoms in a body-centered cubic cell?

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Question 5

The normal boiling point of a liquid is

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Question 6

Arrange Cl₂,ICl,and Br₂ in order from lowest to highest melting point.

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Question 7

For a simple cubic unit cell,what percentage of the space in the cell is occupied by the atoms at the corners of the cell?

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Question 8

Sulfur dioxide has a vapor pressure of 462.7 mm Hg at -21.0°C and a vapor pressure of 140.5 mm Hg at -44.0°C.What is the molar heat of vaporization of sulfur dioxide? (R = 8.31 J/K⋅mol)

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Question 9

Which of the following nonpolar molecules has the highest boiling point?

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Question 10

Use the phase digram to answer the following questions: -According to the phase diagram ,which point corresponds to conditions where only the solid phase exists?

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Question 11

All of the following statements are correct EXCEPT

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Question 12

Sulfur dioxide has an enthalpy of vaporization of 24.9 kJ/mol.At 205 K,SO₂ has a vapor pressure of 30.3 mm Hg.What is the normal boiling point temperature of SO₂? (R = 8.31 J/K.mol)

(Multiple Choice)

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Question 13

Naphthalene,a substance present in some mothballs,has a molar heat of vaporization of 49.4 kJ/mol.If the vapor pressure of naphthalene is 0.300 mm Hg at 298 K,what is the temperature at which the vapor pressure is 7.60 × 10² mm Hg? (R = 8.31 J/K.mol)

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Question 14

Xenon has a molar heat of vaporization of 12.6 kJ/mol and a vapor pressure of 1.00 atm at -108.0°C.What is the vapor pressure of xenon at -148.0°C? (R = 8.31 J/K.mol)

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Question 15

All of the following statements are incorrect EXCEPT

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Question 16

What type of solid is generally soluble in nonpolar solvents?

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Question 17

Arrange the noble gases in order from weakest to strongest interatomic forces.

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Question 18

Potassium crystallizes in a body-centered cubic unit cell.If the length of an edge of the unit cell is 524 pm,what is the atomic radius (in pm)of a potassium atom?

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Question 19

If a pure substance begins at point A on the phase diagram below and the pressure on the substance is reduced at constant temperature until point B is reached,what process occurs?

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Question 20

Showing 1 - 20 of 52

Exam 9: Liquids and Solids

Iron packs in a body-centered cubic structure.If an iron atom has a radius of 126 pm,what is the distance between lattice points at two opposite corners of the unit cell? (Note: a line drawn between the points would go through the center of the unit cell)

In which of the following pure solids is it necessary to break covalent bonds in order to make a liquid or gas?

What is the correct method for determining the number of atoms in a face-centered cubic cell?

Carbon tetrachloride,an organic solvent,has a molar heat of vaporization of 29.82 kJ/mol.If CCl4 has a normal boiling point of 3.50 × 102 K,what is its vapor pressure at 273 K? (R = 8.31 J/mol⋅K)

What is a correct method for determining the number of atoms in a body-centered cubic cell?

The normal boiling point of a liquid is

Arrange Cl2,ICl,and Br2 in order from lowest to highest melting point.

For a simple cubic unit cell,what percentage of the space in the cell is occupied by the atoms at the corners of the cell?

Sulfur dioxide has a vapor pressure of 462.7 mm Hg at -21.0°C and a vapor pressure of 140.5 mm Hg at -44.0°C.What is the molar heat of vaporization of sulfur dioxide? (R = 8.31 J/K⋅mol)

Which of the following nonpolar molecules has the highest boiling point?

Use the phase digram to answer the following questions: -According to the phase diagram ,which point corresponds to conditions where only the solid phase exists?

All of the following statements are correct EXCEPT

Sulfur dioxide has an enthalpy of vaporization of 24.9 kJ/mol.At 205 K,SO2 has a vapor pressure of 30.3 mm Hg.What is the normal boiling point temperature of SO2? (R = 8.31 J/K.mol)

Naphthalene,a substance present in some mothballs,has a molar heat of vaporization of 49.4 kJ/mol.If the vapor pressure of naphthalene is 0.300 mm Hg at 298 K,what is the temperature at which the vapor pressure is 7.60 × 102 mm Hg? (R = 8.31 J/K.mol)

Xenon has a molar heat of vaporization of 12.6 kJ/mol and a vapor pressure of 1.00 atm at -108.0°C.What is the vapor pressure of xenon at -148.0°C? (R = 8.31 J/K.mol)

All of the following statements are incorrect EXCEPT

What type of solid is generally soluble in nonpolar solvents?

Arrange the noble gases in order from weakest to strongest interatomic forces.

Potassium crystallizes in a body-centered cubic unit cell.If the length of an edge of the unit cell is 524 pm,what is the atomic radius (in pm)of a potassium atom?

If a pure substance begins at point A on the phase diagram below and the pressure on the substance is reduced at constant temperature until point B is reached,what process occurs?

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Carbon tetrachloride,an organic solvent,has a molar heat of vaporization of 29.82 kJ/mol.If CCl₄ has a normal boiling point of 3.50 × 10² K,what is its vapor pressure at 273 K? (R = 8.31 J/mol⋅K)

Arrange Cl₂,ICl,and Br₂ in order from lowest to highest melting point.

Sulfur dioxide has an enthalpy of vaporization of 24.9 kJ/mol.At 205 K,SO₂ has a vapor pressure of 30.3 mm Hg.What is the normal boiling point temperature of SO₂? (R = 8.31 J/K.mol)

Naphthalene,a substance present in some mothballs,has a molar heat of vaporization of 49.4 kJ/mol.If the vapor pressure of naphthalene is 0.300 mm Hg at 298 K,what is the temperature at which the vapor pressure is 7.60 × 10² mm Hg? (R = 8.31 J/K.mol)