States of Matter

Question 1

What property of a liquid such as mercury is used in a liquid-in-glass thermometer?

Select one:

a. density
b. compressibility
c. thermal expansion
d. cohesive force

Answer 1

c. thermal expansion

Question 2

A gas sample is collected in a balloon. What happens to the density of the gas sample as the sample is heated?

Select one:

a. decreases
b. increases
c. does not change
d. could increase or decrease depending on how much it was heated

Answer 2

a. decreases

Question 3

The force resulting from particle motion is referred to as

Select one:

a. cohesive forces.
b. chemical forces.
c. nuclear forces.
d. disruptive forces.

Answer 3

d. disruptive forces.

Question 4

How does the kinetic energy of a particle change if the particle’s velocity is increased by a factor of 3?

Select one:

a. Kinetic energy increases by a factor of 3
b. Kinetic energy decreases by a factor of 3
c. Kinetic energy increases by a factor of 9
d. Kinetic energy increases by a factor of 2

Answer 4

c. Kinetic energy increases by a factor of 9

Question 5

Cohesive forces in matter are related to

Select one:

a. potential energy from particle repulsions.
b. potential energy from particle attractions.
c. kinetic energy.
d. cohesive force.

Answer 5

b. potential energy from particle attractions.

Question 6

Which of the following correctly arranges the given compounds in order of increasing boiling point (lowest to highest)?

Select one:
a. CH3CH2CH2CH3

Answer 6

b. CH3CH2CH2CH3

Question 7

Definite shape is a characteristic of which state of matter?

Select one:

a. solid
b. liquid
c. gaseous

Answer 7

a. solid

Question 8

Which of the following pressure units is largest?

Select one:

a. one torr
b. one mm Hg
c. one psi
d. one atmosphere

Answer 8

d. one atmosphere

Question 9

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

Select one:

a. He
b. N2
c. HCl
d. H2

Answer 9

c. HCl

Question 10

Increasing the pressure on a gas at constant temperature does what to the volume of the gas?

Select one:

a. increases it
b. decreases it
c. has no effect on it
d. increases it up to a certain point

Answer 10

b. decreases it

Question 11

In which of the following processes does the energy of the water increase?

Select one:

a. water freezes
b. steam condenses
c. water evaporates

Answer 11

c. water evaporates

Question 12

Which of the following is an exothermic process?

Select one:

a. sublimation
b. melting
c. evaporation
d. liquefaction

Answer 12

d. liquefaction

Question 13

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

Select one:

a. it increases
b. it decreases
c. it is not changed
d. it increases or decreases depending on how large a temperature change occurs

Answer 13

b. it decreases

Question 14

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

Select one:

a. H2O(s) + heat –> H2O(g)
b. H2O(g) –> H2O(s) + heat
c. H2O(g) + heat –> H2O(s)
d. H2O(s) –> H2O(g) + heat

Answer 14

b. H2O(g) –> H2O(s) + heat

Question 15

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

Select one:

a. 0o C
b. 1.00 atm
c. 273 K
d. 1.00 torr

Answer 15

d. 1.00 torr

Question 16

Calculate the kinetic energy of a 0.500g particles traveling at 5.50 cm/s.

Select one:

a. 2.75 g cm2/s2
b. 7.56 g cm2/s2
c. 51.1 g cm2/s2
d. 6.88 g cm2/s2

Answer 16

b. 7.56 g cm2/s2

Question 17

A pressure is recorded as 622 torr. What is this pressure in atm?

Select one:

a. 1.22
b. 0.818
c. 5.17
d. 0.0393

Answer 17

b. 0.818

Question 18

Convert a temperature of 45.0 degrees C into kelvins.

Select one:

a. -45.0 K
b. -228 K
c. 228 K
d. 318 K

Answer 18

d. 318 K

Question 19

Convert a temperature of 210 K into Celsius degrees.

Select one:

a. -63.0o C
b. 63.0o C
c. 242oC
d. 483oC

Answer 19

a. -63.0o C

Question 20

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

Select one:

a. 11.1 kcal
b. 1.8 cal
c. 12.4 cal
d. 20.2 kcal

Answer 20

d. 20.2 kcal

Question 21

A sample of gas collected at 21.0oC and 660 torr pressure has a volume of 1.83 liters. What volume in liters will the gas occupy at 38.0oC under a pressure of 500 torr?

Select one:

a. 2.56
b. 4.37
c. 2.28
d. 1.33

Answer 21

a. 2.56

Question 22

Calculate the volume in liters of 3.50 moles of gas at STP.

Select one:

a. 6.4
b. 44.8
c. 3.5
d. 78.4

Answer 22

d. 78.4

Question 23

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?

Select one:

a. 1175 torr
b. 972 torr
c. 0.411 atm
d. 331 torr

Answer 23

b. 972 torr

Question 24

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

Select one:

a. cal
b. cal/oC
c. cal/goC
d. cal/g

Answer 24

d. cal/g

Question 25

Using d=m/V, what is the volume (V) of a solid that has a density of 3.14g/cm3 and has a mass of 7.04 grams?

Select one:

a. 22.1 cm3
b. 22.11 cm3
c. 2.24 cm3
d. 2.242 cm3

Answer 25

c. 2.24 cm3