29) When methane is burned with oxygen the products are carbon dioxide and water. If you
produce 36 grams of water and 44 grams of carbon dioxide from 16 grams of methane, how
many grams of oxygen were needed for the reaction?
A) 32
B) 80
C) 96
D) 64
E) none of the above
30) When methane is burned with oxygen, the products are carbon dioxide and water. If you
produce 18 grams of water from 8 grams of methane and 32 grams of oxygen, how many grams
of carbon dioxide were produced in the reaction?
A) 40
B) 22
C) 58
D) 18
E) none of the above
31) When methane is burned with oxygen, the products are carbon dioxide and water. If you
produce 9 grams of water and 11 grams of carbon dioxide from 16 grams of oxygen, how many
grams of methane were needed for the reaction?
A) 4
B) 20
C) 31
D) 40
E) none of the above
32) Which of the following statements about energy is FALSE?
A) An object possessing energy can do work on another object.
B) Energy can neither be created nor destroyed.
C) Energy is the single main component of the universe.
D) Energy is the capacity to do work.
E) All of the above statements are true.
33) Which type of energy is associated with motion?
A) chemical
B) electrical
C) potential
D) kinetic
E) none of the above
34) Which type of energy is associated with position?
A) chemical
B) electrical
C) potential
D) kinetic
E) none of the above
35) What type of energy is associated with the burning of gasoline?
A) kinetic
B) potential
C) electrical
D) chemical
E) none of the above
36) Which of the following items is NOT a common unit of energy?
A) joule
B) torr
C) calorie
D) kilowatt-hour
E) none of the above
37) How many calories are there in a 255 Calorie snack bar?
A) 2.55 × 105
B) 1.07 × 103
C) 60.9
D) 1 × 103
E) none of the above
38) How many joules are there in a 255 calorie snack bar?
A) 2.55 × 105
B) 1.07 × 106
C) 1.07 × 103
D) 6.09 × 104
E) none of the above
39) How many kilojoules are there in 95.0 Calories?
A) 2.27 × 107
B) 3.97 × 10-4
C) 397
D) 22.7
E) none of the above
40) If a particular process is endothermic, the reverse process must be a (an):
A) chemical change.
B) isothermal process.
C) exothermic process.
D) endothermic process.
E) none of the above
41) An energy diagram that shows the reactants having greater energy than the products
illustrates an:
A) endothermic reaction.
B) exothermic reaction.
C) isothermic reaction.
D) impossible reaction.
E) none of the above
42) If a solid piece of shiny sodium metal is exposed to chlorine gas, a large amount of heat is
released and the white solid sodium chloride (table salt) forms. Based on this information, which
of the following statements is TRUE?
A) This process represents a physical change.
B) Mass is lost during this process.
C) Sodium chloride is an element.
D) This process was exothermic.
E) none of the above
43) In order, what is the freezing point, room temperature and boiling point of water according to
the Fahrenheit scale?
A) 32-75-212
B) 0-75-100
C) 0-25-100
D) 0-298-373
E) none of the above
44) In order, what is the freezing point, room temperature and boiling point of water according to
the Celsius scale?
A) 32-75-212
B) 0-75-100
C) 0-25-100
D) 0-298-373
E) none of the above
45) Which of the following is NOT true?
A) The degree “symbol” is not used with the Kelvin scale.
B) A kelvin degree is the same size as a Celsius degree.
C) The Kelvin temperature scale avoids use of negative numbers.
D) Water boils at the same temperature value on both the Kelvin and Celsius scales.
E) none of the above
46) The boiling point of water is:
(1) 212 °F (2) 0°C (3) 373 K
A) 1 and 2 only
B) 2 and 3 only
C) 1 and 3 only
D) all of 1, 2, and 3
E) none of 1, 2, and 3
47) What is the value of 27°C on the Kelvin temperature scale?
A) 273
B) 246
C) 300
D) 81
E) none of the above
48) What is the value of 27°C on the Fahrenheit temperature scale?
A) -6.8
B) 106
C) 300
D) 81
E) none of the above
49) What is the value of 98 °F in units of °C?
A) 72
B) 37
C) 371
D) 22
E) none of the above
50) What is the value of 335 K on the Celsius temperature scale?
A) 62
B) 167
C) 608
D) 66.4
E) none of the above
51) Melting point can be defined as the temperature when a solid becomes a liquid. The melting
point of the chemical acetone is -95°C. Which state of matter would you expect to exist for
acetone at a temperature of -94°C?
A) solid
B) liquid
C) gas
D) plasma
52) In calculating the relationship between the amount of heat added to a substance and the
corresponding temperature change, the specific heat capacity is usually represented by which
symbol?
A) C
B) q
C) ΔT
D) m
E) K
53) A 15.0 gram lead ball at 25.0°C was heated with 40.5 joules of heat. Given the specific heat
of lead is 0.128 J/g∙°C, what is the final temperature of the lead?
A) 21.1°C
B) 46.1°C
C) 77.8°C
D) 0.844°C
E) none of the above
54) What is the specific heat (J/g∙°C) of a metal object whose temperature increases by 3.0°C
when 17.5 g of metal was heated with 38.5 J?
A) 4.18
B) 0.15
C) 0.73
D) 1.4
E) none of the above
55) How much heat (kJ) is needed to raise the temperature of 100.0 grams of water from 25.0°C
to ?
A) 10450
B) 0.598
C) 1.05
D) 10.5
E) none of the above
56) From the following list of substances and heat capacities, choose the one that will have the
lowest temperature after absorbing 100.0 kJ of heat. Assume identical masses of each substance
start at the same initial temperature.
A) lead-0.128 J/g∙°C
B) copper-0.385 J/g∙°C
C) ethanol-2.42 J/g∙°C
D) water-4.18 J/g∙°C
E) not enough information
57) Consider the following specific heats of metals.
Metal Specific Heat (J/g∙°C)
Aluminum 0.903
Copper 0.385
Gold 0.128
Iron 0.449
Silver 0.235
If the same amount of heat is added to 50.0 g samples of each of the metals, which are all at the
same temperature, which metal will reach the highest temperature?
A) aluminum
B) copper
C) gold
D) iron
E) silver
58) When 49.5 J of heat was transferred to 7.3 g iron at 22°C, the temperature of iron increases
to 37°C. What is the specific heat of iron in J/g∙°C?
A) 4.5
B) 0.45
C) 2.2
D) 24
E) none of the above
59) Suppose it took 108 joules of energy to raise a bar of gold from 25.0°C to 29.7°C. Given that
the specific heat capacity of gold is , what is the mass (in grams) of the bar of gold?
A) 6.5 × 101 g
B) 1.8 × 102 g
C) 1.28 × 102 g
D) 1.08 × 102 g
E) none of the above
Algorithmic Questions
1) A sample of 508.4 grams of copper completely reacted with oxygen to form 572.4 grams of a
copper oxide product. How many grams of oxygen must have reacted?
A) 636.4
B) 64.0
C) 32.0
D) 572.4
E) 508.4
F) none of the above
2) How many Calories are in 575.0 calories?
A) 575,000
B) 0.5750
C) 137.6
D) 2,404
E) none of the above
3) How many joules are in 55.2 calories?
A) 13,200
B) 55,200
C) 13.2
D) 231
E) none of the above
4) What is the value of -25°C on the Kelvin scale?
A) 248
B) -32
C) -13
D) -298
E) none of the above
5) What is the value of 23°C on the Fahrenheit scale?
A) 73
B) 52
C) 59
D) 81
6) What is the value of 783 K in units of °C?
A) 417
B) 1441
C) 510.
D) 1056
E) none of the above
7) The temperature of 390 kelvin is warmer than which one of the following temperatures?
A) 250 deg F
B) 135 deg C
C) 109 deg C
D) 44 deg F
E) none of the above
8) Given the table of specific heat values below, what is the identity of a 10.0 g metal sample
that increases by when of energy is absorbed?
Element Specific Heat(J/g°C)
Au 0.128
Ag 0.235
Cu 0.385
Fe 0.449
Al 0.903
A) Fe
B) Al
C) Au
D) Ag
E) none of the above
9) Given the table of specific heat values below, what is the identity of a 26.2 g metal sample
that increases by 8.5°C when 100.0 J of energy is absorbed?
Element Specific Heat(J/g°C)
Au 0.128
Ag 0.235
Cu 0.385
Fe 0.449
Al 0.903
A) Fe
B) Al
C) Au
D) Ag
E) none of the above
10) How much heat (kJ) is absorbed by 948.0 g of water in order for the temperature to increase
from to
A) 7.5
B) 31.4
C) 30.2
D) 29.7
E) none of the above
11) What is the final temperature of 25.0 grams of water at 22.0°C after it absorbs of heat?
A) 17.7
B) 4.29
C) 26.3
D) 15.8
E) none of the above
12) How many grams of water when supplied with of heat will gain a temperature of 5.2°C?
A) 15
B) 17
C) 19
D) 16
E) none of the above