Clicker Questions
Chapter 5
Barbara Mowery
York College
© 2015 Pearson Education, Inc.
A moving racquetball has
a.
b.
c.
d.
kinetic energy.
potential energy.
work.
heat.
© 2015 Pearson Education, Inc.
A moving racquetball has
a.
b.
c.
d.
kinetic energy.
potential energy.
work.
heat.
© 2015 Pearson Education, Inc.
A motionless racquetball has
a.
b.
c.
d.
kinetic energy.
potential energy.
work.
heat.
© 2015 Pearson Education, Inc.
A motionless racquetball has
a.
b.
c.
d.
kinetic energy.
potential energy.
work.
heat.
© 2015 Pearson Education, Inc.
As the racquetball game
progresses, the players
perspire, giving off
a.
b.
c.
d.
kinetic energy.
potential energy.
work.
heat.
© 2015 Pearson Education, Inc.
As the racquetball game
progresses, the players
perspire, giving off
a.
b.
c.
d.
kinetic energy.
potential energy.
work.
heat.
© 2015 Pearson Education, Inc.
Work = __________
a.
b.
c.
d.
energy × distance
energy ÷ distance
force × distance
force ÷ distance
© 2015 Pearson Education, Inc.
Work = __________
a.
b.
c.
d.
energy × distance
energy ÷ distance
force × distance
force ÷ distance
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The sum of all of the kinetic
and potential energies of a
system is called the
a.
b.
c.
d.
integral energy.
dynamic energy.
internal energy.
work.
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The sum of all of the kinetic
and potential energies of a
system is called the
a.
b.
c.
d.
integral energy.
dynamic energy.
internal energy.
work.
© 2015 Pearson Education, Inc.
Which set of values for heat
and work will result in a
decrease of internal energy?
a.
b.
c.
d.
q = –150 J; w = +150 J
q = –150 J; w = +300 J
q = +150 J; w = –300 J
q = +300 J; w = –150 J
© 2015 Pearson Education, Inc.
Which set of values for heat
and work will result in a
decrease of internal energy?
a.
b.
c.
d.
q = –150 J; w = +150 J
q = –150 J; w = +300 J
q = +150 J; w = –300 J
q = +300 J; w = –150 J
© 2015 Pearson Education, Inc.
Which set of values for heat
and work will result in an
increase of internal energy?
a.
b.
c.
d.
q = +300 J; w = –150 J
q = –150 J; w = +150 J
q = +150 J; w = –300 J
q = –300 J; w = +300 J
© 2015 Pearson Education, Inc.
Which set of values for heat
and work will result in an
increase of internal energy?
a.
b.
c.
d.
q = +300 J; w = –150 J
q = –150 J; w = +150 J
q = +150 J; w = –300 J
q = –300 J; w = +300 J
© 2015 Pearson Education, Inc.
A system absorbs heat during
an _______ process.
a.
b.
c.
d.
exothermic
isothermal
endothermic
isobaric
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A system absorbs heat during
an _______ process.
a.
b.
c.
d.
exothermic
isothermal
endothermic
isobaric
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If X is a state function, then
the change in X is given by
(Xfinal __ Xinitial).
a.
b.
c.
d.
+
–
×
÷
© 2015 Pearson Education, Inc.
If X is a state function, then
the change in X is given by
(Xfinal __ Xinitial).
a.
b.
c.
d.
+
–
×
÷
© 2015 Pearson Education, Inc.
Which group includes only
state functions?
a.
b.
c.
d.
P, T, V
P, H, w
H, q, w
P, R, q, w
© 2015 Pearson Education, Inc.
Which group includes only
state functions?
a.
b.
c.
d.
P, T, V
P, H, w
H, q, w
P, R, q, w
© 2015 Pearson Education, Inc.
Which of these is not a state
function?
a.
b.
c.
d.
enthalpy
internal energy
temperature
work
© 2015 Pearson Education, Inc.
Which of these is not a state
function?
a.
b.
c.
d.
enthalpy
internal energy
temperature
work
© 2015 Pearson Education, Inc.
Which statement about
enthalpy is not correct?
a.
b.
c.
d.
Enthalpy can be measured in joules per mole.
Enthalpy is a state function.
Enthalpy is an extensive property.
Change in enthalpy is negative for an
exothermic reaction.
© 2015 Pearson Education, Inc.
Which statement about
enthalpy is not correct?
a.
b.
c.
d.
Enthalpy can be measured in joules per mole.
Enthalpy is a state function.
Enthalpy is an extensive property.
Change in enthalpy is negative for an
exothermic reaction.
© 2015 Pearson Education, Inc.
The laboratory technique used
to measure heat flow is called
a.
b.
c.
d.
calorimetry.
neutralization.
titration.
voltammetry.
© 2015 Pearson Education, Inc.
The laboratory technique used
to measure heat flow is called
a.
b.
c.
d.
calorimetry.
neutralization.
titration.
voltammetry.
© 2015 Pearson Education, Inc.
When a piece of iron at 356 K
is placed in water at 298 K,
what happens?
a.
b.
c.
d.
Energy flows from iron to water.
Energy flows from water to iron.
Energy does not flow.
Energy is not conserved.
© 2015 Pearson Education, Inc.
When a piece of iron at 356 K
is placed in water at 298 K,
what happens?
a.
b.
c.
d.
Energy flows from iron to water.
Energy flows from water to iron.
Energy does not flow.
Energy is not conserved.
© 2015 Pearson Education, Inc.
A substance’s specific heat is
its heat capacity per
a.
b.
c.
d.
mole.
gram.
joule.
kelvin.
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A substance’s specific heat is
its heat capacity per
a.
b.
c.
d.
mole.
gram.
joule.
kelvin.
© 2015 Pearson Education, Inc.
The specific heat of water is
relatively large. This means
that in response to a ____
amount of heat, it shows a
____ change in temperature.
a. large; large
c. large; small
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b. small; large
d. small; small
The specific heat of water is
relatively large. This means
that in response to a ____
amount of heat, it shows a
____ change in temperature.
a. large; large
c. large; small
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b. small; large
d. small; small
The standard enthalpy of
formation of carbon in its
graphite form is ___ kJ/mole.
a.
b.
c.
d.
100
1000
1
0
© 2015 Pearson Education, Inc.
The standard enthalpy of
formation of carbon in its
graphite form is ___ kJ/mole.
a.
b.
c.
d.
100
1000
1
0
© 2015 Pearson Education, Inc.
The standard enthalpy of
formation of carbon in its
diamond form is +1.88 kJ/mole,
which means that diamond is
__________ graphite.
a.
b.
c.
d.
as stable as
more stable than
less stable than
an isotope of
© 2015 Pearson Education, Inc.
The standard enthalpy of
formation of carbon in its
diamond form is +1.88 kJ/mole,
which means that diamond is
__________ graphite.
a.
b.
c.
d.
as stable as
more stable than
less stable than
an isotope of
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2 H2 + O2  2 H2O
If the reaction above releases
483.6 kJ, then the standard
enthalpy of formation of H2O =
a.
b.
c.
d.
–483.6 kJ/mole.
+483.6 kJ/mole.
–241.8 kJ/mole.
+241.8 kJ/mole.
© 2015 Pearson Education, Inc.
2 H2 + O2  2 H2O
If the reaction above releases
483.6 kJ, then the standard
enthalpy of formation of H2O =
a.
b.
c.
d.
–483.6 kJ/mole.
+483.6 kJ/mole.
–241.8 kJ/mole.
+241.8 kJ/mole.
© 2015 Pearson Education, Inc.
The average fuel values for
proteins, carbohydrates, and
fats are, respectively,
_______ kcal/g.
a.
b.
c.
d.
4, 4, and 4
4, 4, and 9
4, 9, and 4
9, 4, and 4
© 2015 Pearson Education, Inc.
The average fuel values for
proteins, carbohydrates, and
fats are, respectively,
_______ kcal/g.
a.
b.
c.
d.
4, 4, and 4
4, 4, and 9
4, 9, and 4
9, 4, and 4
© 2015 Pearson Education, Inc.