Question 1

Matter is more likely to exist in the ________ state as the pressure is reduced.

Accepted Answer

A)  solid
B)  liquid
C)  gas
D)  elemental C

Question 2

At a given temperature and pressure,the volume of a gas is directly proportional to the amount of gas present.This is a statement of

Accepted Answer

A)  Avogadro's Law.
B)  Boyle's Law.
C)  Charles's Law.
D)  the Ideal Gas Law. A

Question 3

The process by which a gas is converted to a liquid is called

Accepted Answer

A)  condensation.
B)  melting.
C)  vaporization.
D)  sublimation. A

Question 4

In a solution,the solvent is

Accepted Answer

A)  present in larger amount than the solute is.
B)  dissolved in the solute.
C)  always water.
D)  always nonpolar.

Question 5

Ionic compounds have strong forces between particles.This means that generally ionic compounds are ________ at room temperature.

Accepted Answer

A)  solids
B)  liquids
C)  gases
D)  covalently bonded

Question 6

Charles's Law relates the volume and temperature of a gas sample at constant pressure.What would be the temperature of a gas sample when its volume is 0 L?

Accepted Answer

A)  273°C
B)  -273°C
C)  0°C
D)  273 K

Question 7

A balloon is inflated outdoors on a cold day in North Dakota at a temperature of -35°C to a volume of 3.0 L.The pressure remains constant.What is the volume of the balloon indoors at a temperature of 25°C?

Accepted Answer

A)  2) 4 L
B)  3) 8 L
C)  3) 2 L
D)  2) 1 L

Question 8

List the disadvantage of using supercritical carbon dioxide.

Accepted Answer

A)  Precision electrical parts are degreased.
B)  Oils are isolated from the plant source.
C)  Special equipment is needed for the high temperature and high pressure.
D)  Coffee is decaffeinated.

Question 9

Which state of matter is characterized by having molecules close together,but moving randomly?

Accepted Answer

A)  gas
B)  liquid
C)  solid
D)  all of these

Question 10

The volume of one mole of krypton at STP is

Accepted Answer

A)  12.4 liters.
B)  22.4 liters.
C)  12.4 gallons.
D)  6) 02 × 10²³ liters.

Question 11

For a given amount of gas at a constant temperature,the volume of gas varies inversely with its pressure is a statement of ________ Law.

Accepted Answer

A)  Charles's
B)  Avogadro's
C)  Boyle's
D)  Curie's

Question 12

Matter is more likely to exist in the ________ state as the temperature is raised.

Accepted Answer

A)  solid
B)  liquid
C)  gas
D)  elemental

Question 13

The pressure of a gas will increase when

Accepted Answer

A)  the volume decreases.
B)  the volume increases.
C)  the temperature decreases.
D)  the size of the container increases.

Question 14

A liquid

Accepted Answer

A)  has a definite volume and a definite shape.
B)  has a definite shape but no definite volume.
C)  has a definite volume but no definite shape.
D)  is readily compressible.

Question 15

A gas is enclosed in a cylinder fitted with a piston.The volume of the gas is 5.00 L at 0.500 atm pressure.The piston is moved to increase the volume to 3.00 L.Which of the following is a reasonable value for the pressure of the gas at the greater volume?

Accepted Answer

A)  0) 300 atm
B)  0) 833 atm
C)  30.0 atm
D)  0) 0333 atm

Question 16

The attraction between an ion and water molecules is

Accepted Answer

A)  ion-ion interaction.
B)  ion-dipole interaction.
C)  hydrogen bonding.
D)  dispersion interaction.

Question 17

Why are the melting points of ionic compounds higher than the melting points of molecular compounds?

Accepted Answer

The answer of Why are the melting points of ionic...

Question 18

Which of the following properties are NOT a characteristic of ionic compounds?

Accepted Answer

A)  They have low boiling points.
B)  They are composed of a metal and a nonmetal.
C)  They tend to be solids at room temperature.
D)  They may be soluble in water.

Question 19

Which of the following processes involves the removal of energy (heat)?

Accepted Answer

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

Question 20

A covalent bond is weaker than a hydrogen bond.

Accepted Answer

A) True 
 B)False

Exam 6: Gases, Liquids, Solids, and Intermolecular Forces