Question 1

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 2

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.

Question 3

As a healthy individual,you have a blood pressure of 117 over 65.What are the units associated with blood pressure?

Accepted Answer

A) Pa 
B) torr 
C) mm Hg 
D) atm 
A) Pa 
B) torr 
C) mm Hg 
D) atm

Question 4

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 5

The temperature of a liquid is decreased.What happens to the vapor pressure of the liquid as a result?

Accepted Answer

A) it increases 
B) it decreases 
C) it is not changed 
D) varies over time 
A) it increases 
B) it decreases 
C) it is not changed 
D) varies over time

Question 6

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 7

Small compressibility is a 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 8

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 9

Which individual developed a relationship showing that PV = k?

Accepted Answer

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

Question 10

Convert a temperature of 45$\degree$C into Kelvin.

Accepted Answer

A) "-45 K" 
B) "-228 K" 
C) "228 K" 
D) "318 K" 
A) "-45 K" 
B) "-228 K" 
C) "228 K" 
D) "318 K"

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

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 13

When steam condenses,it absorbs heat.

Accepted Answer

A) True 
 B)False

Question 14

You have a patient that is currently experience extreme discomfort after eating a large quantity of beans.The pain is being caused by the build up of gas pressure in the large intestines.If you were able to put a pressure gauge in to the patient,which of the following would be a reasonable pressure that you might observe.

Accepted Answer

A) 860 torr 
B) 860 psi 
C) 860 pascal 
D) 860 atm 
A) 860 torr 
B) 860 psi 
C) 860 pascal 
D) 860 atm

Question 15

A mixture of helium,argon and krypton is made and stored in a cylinder at a total pressure of 2.80 atm.The partial pressure of helium is 900 torr,and that of argon is 250 torr.What is the partial pressure of krypton in the mixture?

Accepted Answer

A) 1.18 atm 
B) 1.51 atm 
C) 1150 torr 
D) 978 torr 
A) 1.18 atm 
B) 1.51 atm 
C) 1150 torr 
D) 978 torr

Question 16

What volume of ammonia gas,NH3,in liters is produced at STP by the complete reaction of 100 g of nitrogen,N2,with excess hydrogen? N2 + 3H2 $\rightarrow$2NH3

Accepted Answer

A) 74.7 
B) 747 
C) 62.5 
D) 160 
A) 74.7 
B) 747 
C) 62.5 
D) 160

Question 17

Which of the following influence the vapor pressure of liquids?

Accepted Answer

A) polarity of liquid molecules 
B) mass of liquid molecules 
C) temperature of liquid 
D) more than one response is correct 
A) polarity of liquid molecules 
B) mass of liquid molecules 
C) temperature of liquid 
D) more than one response is correct

Question 18

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 19

Which of the following would be an example of potential energy?

Accepted Answer

A) an avalanche 
B) chemical reaction 
C) a new lithium battery 
D) diffusion 
A) an avalanche 
B) chemical reaction 
C) a new lithium battery 
D) diffusion

Question 20

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

Exam 6: The States of Matter

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.

Cohesive forces in matter are related to

As a healthy individual,you have a blood pressure of 117 over 65.What are the units associated with blood pressure?

Potential energy resulting from the attraction of particles

The temperature of a liquid is decreased.What happens to the vapor pressure of the liquid as a result?

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

Small compressibility is a characteristic of which state of matter?

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?

Which individual developed a relationship showing that PV = k?

Convert a temperature of 45 °\degree° C into Kelvin.

High density is characteristic of which state of matter?

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.

When steam condenses,it absorbs heat.

A mixture of helium,argon and krypton is made and stored in a cylinder at a total pressure of 2.80 atm.The partial pressure of helium is 900 torr,and that of argon is 250 torr.What is the partial pressure of krypton in the mixture?

What volume of ammonia gas,NH3,in liters is produced at STP by the complete reaction of 100 g of nitrogen,N2,with excess hydrogen? N2 + 3H2 →\rightarrow→ 2NH3

Which of the following influence the vapor pressure of liquids?

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.)

Which of the following would be an example of potential energy?

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?

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

Convert a temperature of 45 $\degree$ C into Kelvin.

What volume of ammonia gas,NH₃,in liters is produced at STP by the complete reaction of 100 g of nitrogen,N₂,with excess hydrogen? N₂ + 3H₂ $\rightarrow$ 2NH₃