© 2015 Pearson Education, Inc. Clicker Questions Chapter 5 Barbara Mowery York College.

© 2015 Pearson Education, Inc.

Clicker Questions

Chapter 5

Barbara Mowery

York College

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A moving racquetball has

a. kinetic energy.

b. potential energy.

c. work.

d. heat.

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A moving racquetball has

a. kinetic energy.

b. potential energy.

c. work.

d. heat.

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a. kinetic energy.

b. potential energy.

c. work.

d. heat.

A motionless racquetball has

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a. kinetic energy.

b. potential energy.

c. work.

d. heat.

A motionless racquetball has

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As the racquetball game progresses, the players perspire, giving off

a. kinetic energy.

b. potential energy.

c. work.

d. heat.

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As the racquetball game progresses, the players perspire, giving off

a. kinetic energy.

b. potential energy.

c. work.

d. heat.

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Work = __________

a. energy × distance

b. energy ÷ distance

c. force × distance

d. force ÷ distance

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Work = __________

a. energy × distance

b. energy ÷ distance

c. force × distance

d. force ÷ distance

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The sum of all of the kinetic and potential energies of a system is called the

a. integral energy.

b. dynamic energy.

c. internal energy.

d. work.

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The sum of all of the kinetic and potential energies of a system is called the

a. integral energy.

b. dynamic energy.

c. internal energy.

d. work.

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Which set of values for heat and work will result in a decrease of internal energy?

a. q = –150 J; w = +150 J

b. q = –150 J; w = +300 J

c. q = +150 J; w = –300 J

d. q = +300 J; w = –150 J

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Which set of values for heat and work will result in a decrease of internal energy?

a. q = –150 J; w = +150 J

b. q = –150 J; w = +300 J

c. q = +150 J; w = –300 J

d. q = +300 J; w = –150 J

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Which set of values for heat and work will result in an increase of internal energy?

a. q = +300 J; w = –150 J

b. q = –150 J; w = +150 J

c. q = +150 J; w = –300 J

d. q = –300 J; w = +300 J

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Which set of values for heat and work will result in an increase of internal energy?

a. q = +300 J; w = –150 J

b. q = –150 J; w = +150 J

c. q = +150 J; w = –300 J

d. q = –300 J; w = +300 J

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A system absorbs heat during an _______ process.

a. exothermic

b. isothermal

c. endothermic

d. isobaric

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A system absorbs heat during an _______ process.

a. exothermic

b. isothermal

c. endothermic

d. 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. ÷

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If X is a state function, then the change in X is given by (Xfinal __ Xinitial).

a. +

b. –

c. ×

d. ÷

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Which group includes only state functions?

a. P, T, V

b. P, H, w

c. H, q, w

d. P, R, q, w

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Which group includes only state functions?

a. P, T, V

b. P, H, w

c. H, q, w

d. P, R, q, w

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Which of these is not a state function?

a. enthalpy

b. internal energy

c. temperature

d. work

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Which of these is not a state function?

a. enthalpy

b. internal energy

c. temperature

d. work

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Which statement about enthalpy is not correct?

a. Enthalpy can be measured in joules per mole.

b. Enthalpy is a state function.

c. Enthalpy is an extensive property.

d. Change in enthalpy is negative for an exothermic reaction.

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Which statement about enthalpy is not correct?

a. Enthalpy can be measured in joules per mole.

b. Enthalpy is a state function.

c. Enthalpy is an extensive property.

d. Change in enthalpy is negative for an exothermic reaction.

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The laboratory technique used to measure heat flow is called

a. calorimetry.

b. neutralization.

c. titration.

d. voltammetry.

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The laboratory technique used to measure heat flow is called

a. calorimetry.

b. neutralization.

c. titration.

d. voltammetry.

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When a piece of iron at 356 K is placed in water at 298 K, what happens?

a. Energy flows from iron to water.

b. Energy flows from water to iron.

c. Energy does not flow.

d. Energy is not conserved.

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When a piece of iron at 356 K is placed in water at 298 K, what happens?

a. Energy flows from iron to water.

b. Energy flows from water to iron.

c. Energy does not flow.

d. Energy is not conserved.

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A substance’s specific heat is its heat capacity per

a. mole.

b. gram.

c. joule.

d. kelvin.

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A substance’s specific heat is its heat capacity per

a. mole.

b. gram.

c. joule.

d. kelvin.

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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 b. small; large

c. large; small d. small; small

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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 b. small; large

c. large; small d. small; small

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The standard enthalpy of formation of carbon in its graphite form is ___ kJ/mole.

a. 100

b. 1000

c. 1

d. 0

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a. 100

b. 1000

c. 1

d. 0

The standard enthalpy of formation of carbon in its graphite form is ___ kJ/mole.

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The standard enthalpy of formation of carbon in its diamond form is +1.88 kJ/mole, which means that diamond is __________ graphite.

a. as stable as

b. more stable than

c. less stable than

d. an isotope of

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The standard enthalpy of formation of carbon in its diamond form is +1.88 kJ/mole, which means that diamond is __________ graphite.

a. as stable as

b. more stable than

c. less stable than

d. an isotope of

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2 H2 + O2 2 H2OIf the reaction above releases 483.6 kJ, then the standard enthalpy of formation of H2O =

a. –483.6 kJ/mole.

b. +483.6 kJ/mole.

c. –241.8 kJ/mole.

d. +241.8 kJ/mole.

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2 H2 + O2 2 H2OIf the reaction above releases 483.6 kJ, then the standard enthalpy of formation of H2O =

a. –483.6 kJ/mole.

b. +483.6 kJ/mole.

c. –241.8 kJ/mole.

d. +241.8 kJ/mole.

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The average fuel values for proteins, carbohydrates, and fats are, respectively, _______ kcal/g.

a. 4, 4, and 4

b. 4, 4, and 9

c. 4, 9, and 4

d. 9, 4, and 4

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The average fuel values for proteins, carbohydrates, and fats are, respectively, _______ kcal/g.

a. 4, 4, and 4

b. 4, 4, and 9

c. 4, 9, and 4

d. 9, 4, and 4