Question 1

​ Identify a true statement about the role of disruptive and cohesive forces in the solid state of matter.

Accepted Answer

A) The disruptive force causes the particles to vibrate about their fixed positions, but the cohesive force prevents the lattice from breaking down. 
B) The disruptive force prevents the lattice from breaking down, and the cohesive force causes the particles to vibrate about their fixed positions. 
C) The disruptive force tends to keep the particles together, and the cohesive force tends to scatter them. 
D) The disruptive force makes the particles dependent on each other, and the cohesive force tends to make them independent of each other. 
A) The disruptive force causes the particles to vibrate about their fixed positions, but the cohesive force prevents the lattice from breaking down. 
B) The disruptive force prevents the lattice from breaking down, and the cohesive force causes the particles to vibrate about their fixed positions. 
C) The disruptive force tends to keep the particles together, and the cohesive force tends to scatter them. 
D) The disruptive force makes the particles dependent on each other, and the cohesive force tends to make them independent of each other.

Question 2

Thermal expansion is a property only observed for the gaseous state of matter.

Accepted Answer

A) True 
 B)False

Question 3

Liquid alcohol is placed in a container at 25 ° C, which is sealed. The alcohol starts to evaporate and then stops because the pressure of the gas is the same as the vapor pressure of the liquid.

Accepted Answer

A) True 
 B)False

Question 4

Ethylene dichloride is an effective cooling agent when allowed to evaporate. The heat of vaporization is 85.3 calories per gram. How much heat could be removed from the skin if 2.70 grams of ethylene dichloride were sprayed on and allowed to evaporate?

Accepted Answer

A) 31.6 cal 
B) 230 cal 
C) 0.00320 cal 
D) 0.00400 cal 
A) 31.6 cal 
B) 230 cal 
C) 0.00320 cal 
D) 0.00400 cal

Question 5

Gas A diffuses 4 times as fast as gas B. Gas B must be 4 times as heavy as gas A.

Accepted Answer

A) True 
 B)False

Question 6

The deposition of water vapor occurs when frost forms on a window.  The correct equation to represent this phase change is _____ .

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 7

The heat of fusion for zinc chloride is 40.4 calories per gram at the melting point of 275°C. How much heat is required to melt 500 g of zinc chloride at its melting point?

Accepted Answer

A) 11.1 kcal 
B) 1.80 cal 
C) 12.4 cal 
D) 20.2 kcal 
A) 11.1 kcal 
B) 1.80 cal 
C) 12.4 cal 
D) 20.2 kcal

Question 8

N2 will diffuse faster than NO2.

Accepted Answer

A) True 
 B)False

Question 9

Inhaling volatile materials has result in serious health effects.  Which of the following substances has been used for inhalant abuse?

Accepted Answer

A) propane cooking gas 
B) mercury metal 
C) sodium chloride solution 
D) steam 
A) propane cooking gas 
B) mercury metal 
C) sodium chloride solution 
D) steam

Question 10

Oxygen masks are supplied to people having difficulty breathing because of respiratory problems. This is done to increase the partial pressure of oxygen in the air inhaled.

Accepted Answer

A) True 
 B)False

Question 11

High density is characteristic of which state of matter?

Accepted Answer

A) solid 
B) liquid 
C) gaseous 
D) more than one response is correct 
A) solid 
B) liquid 
C) gaseous 
D) more than one response is correct

Question 12

Who developed the concept of partial pressure of gases in a mixture?

Accepted Answer

A) Charles 
B) Boyle 
C) Avogadro 
D) Dalton 
A) Charles 
B) Boyle 
C) Avogadro 
D) Dalton

Question 13

Which of the following gases is least likely to behave ideally?

Accepted Answer

A) He 
B) N2 
C) HCl 
D) H2 
A) He 
B) N2 
C) HCl 
D) H2

Question 14

The specific heat of ice is the amount of heat required to melt a specified weight to liquid water.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following gases would diffuse about one-third as fast as helium gas, He?

Accepted Answer

A) HCl 
B) NH3 
C) CH4 
D) H2O 
A) HCl 
B) NH3 
C) CH4 
D) H2O

Question 16

A fan works to cool a person because the breeze makes each gram of water that evaporates carry off more heat than without the fan.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following is not a standard condition (STP)for gas measurements?

Accepted Answer

A) 0 ° C 
B) 1.00 atm 
C) 273 K 
D) 1.00 torr 
A) 0 ° C 
B) 1.00 atm 
C) 273 K 
D) 1.00 torr

Question 18

Potential energy resulting from the attraction of particles

Accepted Answer

A) decreases when separation distance decreases. 
B) decreases when separation distance increases. 
C) increases when separation distance increases. 
D) More than one response is correct. 
A) decreases when separation distance decreases. 
B) decreases when separation distance increases. 
C) increases when separation distance increases. 
D) More than one response is correct.

Question 19

The heat of fusion of water is 80.0. What are the units associated with this number?

Accepted Answer

A) cal 
B) cal \ ° C 
C) cal \ g ° C 
D) cal \ g 
A) cal 
B) cal \ ° C 
C) cal \ g ° C 
D) cal \ g

Question 20

Two objects are moving with the same velocity, but one has twice the kinetic energy of the other. How does the mass of the object with higher kinetic energy compare to the other object's mass?

Accepted Answer

A) It is larger by a factor of 2 
B) It is smaller by a factor of 2 
C) It is larger by a factor of 4 
D) It is smaller by a factor of 4 
A) It is larger by a factor of 2 
B) It is smaller by a factor of 2 
C) It is larger by a factor of 4 
D) It is smaller by a factor of 4

Exam 6: The States of Matter

​ Identify a true statement about the role of disruptive and cohesive forces in the solid state of matter.

Thermal expansion is a property only observed for the gaseous state of matter.

Liquid alcohol is placed in a container at 25 ° C, which is sealed. The alcohol starts to evaporate and then stops because the pressure of the gas is the same as the vapor pressure of the liquid.

Ethylene dichloride is an effective cooling agent when allowed to evaporate. The heat of vaporization is 85.3 calories per gram. How much heat could be removed from the skin if 2.70 grams of ethylene dichloride were sprayed on and allowed to evaporate?

Gas A diffuses 4 times as fast as gas B. Gas B must be 4 times as heavy as gas A.

The deposition of water vapor occurs when frost forms on a window. The correct equation to represent this phase change is _____ .

The heat of fusion for zinc chloride is 40.4 calories per gram at the melting point of 275°C. How much heat is required to melt 500 g of zinc chloride at its melting point?

N2 will diffuse faster than NO2.

Inhaling volatile materials has result in serious health effects. Which of the following substances has been used for inhalant abuse?

Oxygen masks are supplied to people having difficulty breathing because of respiratory problems. This is done to increase the partial pressure of oxygen in the air inhaled.

High density is characteristic of which state of matter?

Who developed the concept of partial pressure of gases in a mixture?

Which of the following gases is least likely to behave ideally?

The specific heat of ice is the amount of heat required to melt a specified weight to liquid water.

Which of the following gases would diffuse about one-third as fast as helium gas, He?

A fan works to cool a person because the breeze makes each gram of water that evaporates carry off more heat than without the fan.

Which of the following is not a standard condition (STP)for gas measurements?

Potential energy resulting from the attraction of particles

The heat of fusion of water is 80.0. What are the units associated with this number?

Two objects are moving with the same velocity, but one has twice the kinetic energy of the other. How does the mass of the object with higher kinetic energy compare to the other object's mass?

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

Identify a true statement about the role of disruptive and cohesive forces in the solid state of matter.

N₂ will diffuse faster than NO₂.