Question 1

Which process is exothermic?

Accepted Answer

A) gas → liquid 
B) liquid → gas 
C) solid → liquid 
D) solid → gas 
E) none of the above 
A) gas → liquid 
B) liquid → gas 
C) solid → liquid 
D) solid → gas 
E) none of the above

Question 2

Which transformation is condensation?

Accepted Answer

A) liquid → solid 
B) liquid → gas 
C) solid → liquid 
D) solid → gas 
E) gas → liquid 
A) liquid → solid 
B) liquid → gas 
C) solid → liquid 
D) solid → gas 
E) gas → liquid

Question 3

What is the pressure in a 1.00 liter container of methane,CH4,that contains 40.0 g of the gas at 25.0°C?

Accepted Answer

A) 5.13 atm 
B) 61.0 atm 
C) 82.1 atm 
D) 979 atm 
E) 3,920 atm 
A) 5.13 atm 
B) 61.0 atm 
C) 82.1 atm 
D) 979 atm 
E) 3,920 atm

Question 4

Most gases show variations from ideality at ________ pressure and ________ temperature.

Accepted Answer

A) high; low 
B) low; high 
C) high; high 
D) low; low 
E) moderate; moderate 
A) high; low 
B) low; high 
C) high; high 
D) low; low 
E) moderate; moderate

Question 5

List and describe two unique properties of water.Discuss the intermolecular force that causes these unusual properties.

Accepted Answer

Three properties that are acceptable are

Question 6

What volume will be occupied by 8.00 g of oxygen,O2,at STP?

Accepted Answer

A) 5.60 L 
B) 11.2 L 
C) 22.4 L 
D) 13.4 L 
E) 4.00 L 
A) 5.60 L 
B) 11.2 L 
C) 22.4 L 
D) 13.4 L 
E) 4.00 L

Question 7

As the temperature of a liquid is lowered,what happens to its vapor pressure?

Accepted Answer

A) Its vapor pressure drops. 
B) Its vapor pressure rises. 
C) The vapor pressure may rise or drop depending on the liquid. 
D) Its vapor pressure is independent of temperature. 
E) Its vapor pressure first rises then falls. 
A) Its vapor pressure drops. 
B) Its vapor pressure rises. 
C) The vapor pressure may rise or drop depending on the liquid. 
D) Its vapor pressure is independent of temperature. 
E) Its vapor pressure first rises then falls.

Question 8

Sketch a graph illustrating Boyle's Law.Use a gas sample with a volume of 2.0 L at 0.75 atm and 25°C,and show at least two other points.

Accepted Answer

The graph should be a straight

Question 9

Which description best fits a solid?

Accepted Answer

A) definite shape and volume; strong intermolecular attractions 
B) definite volume; shape of container; moderate intermolecular attractions 
C) definite volume; shape of container; no intermolecular attractions 
D) volume and shape of container; no intermolecular attractions 
E) volume and shape of container; strong intermolecular attractions 
A) definite shape and volume; strong intermolecular attractions 
B) definite volume; shape of container; moderate intermolecular attractions 
C) definite volume; shape of container; no intermolecular attractions 
D) volume and shape of container; no intermolecular attractions 
E) volume and shape of container; strong intermolecular attractions

Question 10

A solid compound which has no definite crystalline structure and a poorly defined melting point is referred to as a(an)________ solid.

Accepted Answer

A) ionic 
B) molecular 
C) network covalent 
D) amorphous 
E) metallic 
A) ionic 
B) molecular 
C) network covalent 
D) amorphous 
E) metallic

Question 11

The amount of energy involved in melting a substance without changing its temperature is called the

Accepted Answer

A) heat of vaporization. 
B) calorie. 
C) joule. 
D) heat of fusion. 
E) heat of combustion. 
A) heat of vaporization. 
B) calorie. 
C) joule. 
D) heat of fusion. 
E) heat of combustion.

Question 12

Which is not a correct statement of Charles's Law?

Accepted Answer

A) For a gas sample at constant pressure,temperature and volume are inversely proportional. 
B) volume α temperature 
C) V/T = a constant 
D) 
 
=
  
E) none of the above 
A) For a gas sample at constant pressure,temperature and volume are inversely proportional. 
B) volume α temperature 
C) V/T = a constant 
D) 
 
=
  
E) none of the above

Question 13

Which measurement represents the largest value of pressure?

Accepted Answer

A) 0.750 atm 
B) 785 mm Hg 
C) 755 torr 
D) 22.0 psi 
E) 100 kPa 
A) 0.750 atm 
B) 785 mm Hg 
C) 755 torr 
D) 22.0 psi 
E) 100 kPa

Exam 8: Gases, liquids, and Solids

Which process is exothermic?

Which transformation is condensation?

What is the pressure in a 1.00 liter container of methane,CH4,that contains 40.0 g of the gas at 25.0°C?

Most gases show variations from ideality at ________ pressure and ________ temperature.

List and describe two unique properties of water.Discuss the intermolecular force that causes these unusual properties.

What volume will be occupied by 8.00 g of oxygen,O2,at STP?

As the temperature of a liquid is lowered,what happens to its vapor pressure?

Sketch a graph illustrating Boyle's Law.Use a gas sample with a volume of 2.0 L at 0.75 atm and 25°C,and show at least two other points.

Which description best fits a solid?

A solid compound which has no definite crystalline structure and a poorly defined melting point is referred to as a(an)________ solid.

The amount of energy involved in melting a substance without changing its temperature is called the

Which is not a correct statement of Charles's Law?

Which measurement represents the largest value of pressure?

Matter and Measurements

Atoms and the Periodic Table

Ionic Compounds

Molecular Compounds

Classification and Balancing of Chemical Reactions

Chemical Reactions: Mole and Mass Relationships

Chemical Reactions: Energy, rates, and Equilibrium

Solutions

Acids and Bases

Nuclear Chemistry

Introduction to Organic Chemistry: Alkanes

Alkenes, alkynes, and Aromatic Compounds

Some Compounds With Oxygen, sulfur, or a Halogen

Amines

Aldehydes and Ketones

Carboxylic Acids and Their Derivatives

Amino Acids and Proteins

Enzymes and Vitamins

The Generation of Biochemical Energy

Carbohydrates

Carbohydrate Metabolism

Lipids

Lipid Metabolism

Nucleic Acids and Protein Synthesis

Genomics

Protein and Amino Acid Metabolism

Chemical Messengers: Hormones, neurotransmitters, and Drugs

Body Fluids

Filters

What is the pressure in a 1.00 liter container of methane,CH₄,that contains 40.0 g of the gas at 25.0°C?

Most gases show variations from ideality at pressure and temperature.

What volume will be occupied by 8.00 g of oxygen,O₂,at STP?