Question 1

Cohesive forces in matter are related to

Accepted Answer

A) potential energy from particle repulsions. 
B) potential energy from particle attractions. 
C) kinetic energy. 
D) More than one response is correct. 
A) potential energy from particle repulsions. 
B) potential energy from particle attractions. 
C) kinetic energy. 
D) More than one response is correct. B

Question 2

What is the total pressure of a gaseous mixture that contains three gases with partial pressures of 0.845 atm, 120 torr and 210 mm Hg?

Accepted Answer

A) 1175 torr 
B) 972 torr 
C) 0.411 atm 
D) 331 torr 
A) 1175 torr 
B) 972 torr 
C) 0.411 atm 
D) 331 torr B

Question 3

The amount of pressure on a container at 100 ° C is twice the pressure on the container at 50 ° C.

Accepted Answer

A) True 
 B)False  False

Question 4

​ How does the state of a substance depend on the relative strengths of the cohesive forces and disruptive forces?

Accepted Answer

Cohesive forces are the attractive force

Question 5

The boiling point of a liquid is the temperature at which the vapor pressure and atmospheric pressure are the same.

Accepted Answer

A) True 
 B)False

Question 6

A 5.00 liter gas sample is collected at a temperature and pressure of 27.0 ° C and 1.20 atm. It is desired to transfer the gas to a 3.00 liter container at a pressure of 1.00 atm. What must be the temperature of the gas in the 3.00 liter container?

Accepted Answer

A) 216 K 
B) 417 K 
C) 13.5 ° C 
D) 150 K 
A) 216 K 
B) 417 K 
C) 13.5 ° C 
D) 150 K

Question 7

At STP, the vapor pressure of CH3CH2CH2CH2CH3 is less than CH3CH2CH2CH3.

Accepted Answer

A) True 
 B)False

Question 8

Water has an unusually low specific heat.

Accepted Answer

A) True 
 B)False

Question 9

What pressure will 3.20 mol of N2 gas exert if confined in a 15.0 L container at 100 ° C?

Accepted Answer

A) 1.75 atm 
B) 6.53 atm 
C) 3.27 atm 
D) 13.0 atm 
A) 1.75 atm 
B) 6.53 atm 
C) 3.27 atm 
D) 13.0 atm

Question 10

Consider the figure below which shows the compression phase of a piston in your car's engine.  This is an example of which gas law?

Accepted Answer

A) Charles' 
B) Boyle's 
C) Avagadro's 
D) Dalton's 
A) Charles' 
B) Boyle's 
C) Avagadro's 
D) Dalton's

Question 11

Convert a temperature of 210 K into Celsius degrees.

Accepted Answer

A) − 63.0 ° C 
B) 63.0 ° C 
C) 242 ° C 
D) 483 ° C 
A) − 63.0 ° C 
B) 63.0 ° C 
C) 242 ° C 
D) 483 ° C

Question 12

A 3.2 liter sample of gas is at 40 ° C and 1.0 atmosphere of pressure. If the temperature decreases to 20 ° C and the pressure decreases to 0.60 atmospheres, what is the new volume in liters?

Accepted Answer

A) 5.7 
B) 5.0 
C) 1.8 
D) 0.20 
A) 5.7 
B) 5.0 
C) 1.8 
D) 0.20

Question 13

Which of the following is an exothermic process?

Accepted Answer

A) sublimation 
B) melting 
C) evaporation 
D) condensation 
A) sublimation 
B) melting 
C) evaporation 
D) condensation

Question 14

How many balloons can you fill from a 10 liter tank of helium you purchased?  The tank has an initial pressure of 1500 psi.  Also, you know that, when filled to the recommended 25 psi, each balloon will hold a volume of 5.5 L.  (Hint:  Don't forget that you can't remove the last 10 L from the tank.)

Accepted Answer

A) 60 
B) 107 
C) 109 
D) 600 
A) 60 
B) 107 
C) 109 
D) 600

Question 15

Near room temperature air has a density of 1.18 × 10-3 g\mL.  What volume will 30.77 g of air occupy?

Accepted Answer

A) 2.61 × 104 mL 
B) 3.63 × 10-2 mL 
C) 3.83 × 10-5 mL 
D) 3.08 × 101 mL 
A) 2.61 × 104 mL 
B) 3.63 × 10-2 mL 
C) 3.83 × 10-5 mL 
D) 3.08 × 101 mL

Question 16

Pure substances in the gaseous state contain more energy than in the liquid state.

Accepted Answer

A) True 
 B)False

Question 17

Cohesive forces are the attractive forces associated with potential energy.

Accepted Answer

A) True 
 B)False

Question 18

Polar liquids would normally have higher heats of vaporization than non-polar liquids.

Accepted Answer

A) True 
 B)False

Question 19

Overtime, a latex balloon will lose its shape and buoyancy.  Which process can be used to explain why this occurs?

Accepted Answer

A) sublimation 
B) condensation 
C) effusion 
D) diffusion 
A) sublimation 
B) condensation 
C) effusion 
D) diffusion

Question 20

A gas sample collected at 35.0°C and a pressure of 710 torr has a volume of 200 mL. The temperature and pressure are changed, and the gas is compressed to 150 mL. The new temperature is 40.0 ° C; what is the new pressure?

Accepted Answer

A) 1.27 atm 
B) 1.08 × 103 torr 
C) 541 torr 
D) 0.712 atm 
A) 1.27 atm 
B) 1.08 × 103 torr 
C) 541 torr 
D) 0.712 atm

Exam 6: The States of Matter

Cohesive forces in matter are related to

What is the total pressure of a gaseous mixture that contains three gases with partial pressures of 0.845 atm, 120 torr and 210 mm Hg?

The amount of pressure on a container at 100 ° C is twice the pressure on the container at 50 ° C.

​ How does the state of a substance depend on the relative strengths of the cohesive forces and disruptive forces?

The boiling point of a liquid is the temperature at which the vapor pressure and atmospheric pressure are the same.

A 5.00 liter gas sample is collected at a temperature and pressure of 27.0 ° C and 1.20 atm. It is desired to transfer the gas to a 3.00 liter container at a pressure of 1.00 atm. What must be the temperature of the gas in the 3.00 liter container?

At STP, the vapor pressure of CH3CH2CH2CH2CH3 is less than CH3CH2CH2CH3.

Water has an unusually low specific heat.

What pressure will 3.20 mol of N2 gas exert if confined in a 15.0 L container at 100 ° C?

Consider the figure below which shows the compression phase of a piston in your car's engine. This is an example of which gas law?

Convert a temperature of 210 K into Celsius degrees.

A 3.2 liter sample of gas is at 40 ° C and 1.0 atmosphere of pressure. If the temperature decreases to 20 ° C and the pressure decreases to 0.60 atmospheres, what is the new volume in liters?

Which of the following is an exothermic process?

How many balloons can you fill from a 10 liter tank of helium you purchased? The tank has an initial pressure of 1500 psi. Also, you know that, when filled to the recommended 25 psi, each balloon will hold a volume of 5.5 L. (Hint: Don't forget that you can't remove the last 10 L from the tank.)

Near room temperature air has a density of 1.18 × 10-3 g\mL. What volume will 30.77 g of air occupy?

Pure substances in the gaseous state contain more energy than in the liquid state.

Cohesive forces are the attractive forces associated with potential energy.

Polar liquids would normally have higher heats of vaporization than non-polar liquids.

Overtime, a latex balloon will lose its shape and buoyancy. Which process can be used to explain why this occurs?

A gas sample collected at 35.0°C and a pressure of 710 torr has a volume of 200 mL. The temperature and pressure are changed, and the gas is compressed to 150 mL. The new temperature is 40.0 ° C; what is the new pressure?

Matter, Measurements, and Calculations

Atoms and Molecules

Electronic Structure and the Periodic Law

Forces Between Particles

Chemical Reactions

Solutions and Colloids

Reaction Rates and Equilibrium

Acids, Bases, and Salts

Radioactivity and Nuclear Processes

Organic Compounds: Alkanes

Unsaturated Hydrocarbons

Alcohols, Phenols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Esters

Amines and Amides

Carbohydrates

Lipids

Proteins

Enzymes

Nucleic Acids and Protein Synthesis

Nutrition and Energy for Life

Carbohydrate Metabolism

Lipid and Amino Acid Metabolism

Body Fluids

Filters

How does the state of a substance depend on the relative strengths of the cohesive forces and disruptive forces?

At STP, the vapor pressure of CH₃CH₂CH₂CH₂CH₃ is less than CH₃CH₂CH₂CH₃.

What pressure will 3.20 mol of N₂ gas exert if confined in a 15.0 L container at 100 ° C?

Near room temperature air has a density of 1.18 × 10^-3 g\mL. What volume will 30.77 g of air occupy?