Question 1

An proton accelerated to a velocity of 3.81 × 103 m/s will have more energy than an electron accelerated to the same velocity.

Accepted Answer

A) True 
 B)False  True

Question 2

How much energy is required to warm 175 mL of water at 18.5 ° C to 85.0 ° C? Assume the specific heat of water to be 4.18 J/ g ° C.

Accepted Answer

A)  821,000 J 
B)  48.6 kJ 
C)  52.8 kJ 
D)  48,645 J 
A)  821,000 J 
B)  48.6 kJ 
C)  52.8 kJ 
D)  48,645 J B

Question 3

A chemical reaction in which the bonds formed have more energy than those broken is referred to as a(n):

Accepted Answer

A)  exothermic reaction 
B)  endothermic reaction 
C)  systematic reaction 
D)  inverse reaction 
A)  exothermic reaction 
B)  endothermic reaction 
C)  systematic reaction 
D)  inverse reaction B

Question 4

If a 136.51 g Al rod (c = 0.900 J/g ° C) is at 100.0 ° C and placed into 250.0 g of water at 21.8 ° C, what is the temperature of the system (rod + water) at equilibrium assuming no losses to the surroundings?

Accepted Answer

A)  18 ° C 
B)  206 ° C 
C)  30 ° C 
D)  46 ° C 
A)  18 ° C 
B)  206 ° C 
C)  30 ° C 
D)  46 ° C

Question 5

The chemical reaction by which one mole of a compound is formed from its elements in their standard states is best described as a(n):

Accepted Answer

A)  aldo-condensation reaction 
B)  formation reaction 
C)  thermodynamic equivalent 
D)  addition reaction 
A)  aldo-condensation reaction 
B)  formation reaction 
C)  thermodynamic equivalent 
D)  addition reaction

Question 6

What amount of heat is required to warm 1.5 kg of ice at − 15.0 ° C to steam at 150.0 ° C? Assume the specific heat of water to be 4.18 J/ g ° C, Δ Hfus = 3.35 J/g, and Δ Hvap = 2.26 kJ/g.

Accepted Answer

A)  94.1 kJ 
B)  1,035 kJ 
C)  6,371 kJ 
D)  4,120 kJ 
A)  94.1 kJ 
B)  1,035 kJ 
C)  6,371 kJ 
D)  4,120 kJ

Question 7

The amount of heat required to raise one gram of a material 1 ° C is that material's:

Accepted Answer

A)  electron affinity 
B)  specific heat capacity 
C)  molar heat capacity 
D)  calorimetric constant 
A)  electron affinity 
B)  specific heat capacity 
C)  molar heat capacity 
D)  calorimetric constant

Question 8

What is the kinetic energy of a single He atom traveling at 2.0 × 104 m/s?

Accepted Answer

A)  1.3 × 10 − 18 J 
B)  6.4 × 10 − 24 J 
C)  2.6 × 10 − 18 J 
D)  7.7 × 10 − 13 J 
A)  1.3 × 10 − 18 J 
B)  6.4 × 10 − 24 J 
C)  2.6 × 10 − 18 J 
D)  7.7 × 10 − 13 J

Question 9

Fuel cells offer the promise of a 100% energy usage from an engine.

Accepted Answer

A) True 
 B)False

Question 10

Generating stations using fossil fuels to produce electrical energy rely upon:

Accepted Answer

A)  endothermic chemical reactions 
B)  nuclear fusion reactions 
C)  exothermic chemical reactions 
D)  nuclear fission reactions 
A)  endothermic chemical reactions 
B)  nuclear fusion reactions 
C)  exothermic chemical reactions 
D)  nuclear fission reactions

Question 11

Which of the following reactions notate the formation reaction of CO( g )?

Accepted Answer

A)  C( s ) + O( g ) → CO( g ) 
B)  2C( s ) + O2( g ) → 2 CO( g ) 
C)  CO( g ) → C( s ) +   O2( g ) 
D)  C( s ) +   O2( g ) → CO( g ) 
A)  C( s ) + O( g ) → CO( g ) 
B)  2C( s ) + O2( g ) → 2 CO( g ) 
C)  CO( g ) → C( s ) +   O2( g ) 
D)  C( s ) +   O2( g ) → CO( g )

Question 12

The phase transition from liquid to solid phases is known as:

Accepted Answer

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

Question 13

The study of chemical energy and the transfer of this energy provide a crucial link between chemistry and engineering.

Accepted Answer

A) True 
 B)False

Question 14

Given the following heat of formation values, calculate the heat of reaction for:
Na( s ) + Cl2( g ) → NaCl( s ) 
Δ Hf values in kJ/mol for: Na( s ) = 0, Na( g ) = 108.7, Cl2( g ) = 0, NaCl( s ) = − 411.0

Accepted Answer

A)  − 411.0 kJ 
B)  +411.0 kJ 
C)  − 302.3 kJ 
D)  +519.7 kJ 
A)  − 411.0 kJ 
B)  +411.0 kJ 
C)  − 302.3 kJ 
D)  +519.7 kJ

Question 15

Thermal energy is directly related to the motion of atoms and molecules of the object in question.

Accepted Answer

A) True 
 B)False

Question 16

What is the kinetic energy of a 22,500 lb truck traveling at 55 mi/hr?

Accepted Answer

A)  6.2 × 106 J 
B)  3.1 × 103 J 
C)  6.2 × 108 J 
D)  3.1 × 106 J 
A)  6.2 × 106 J 
B)  3.1 × 103 J 
C)  6.2 × 108 J 
D)  3.1 × 106 J

Question 17

If a lighter contains 4.0 mL of liquid butane (den = 0.8 g/cm3), how much potential energy does the lighter contain according to the combustion of butane:
2 C4H10( g ) + 13 O2( g ) → 8 CO2( g ) + 10 H2O( l ) Δ H = − 5.75 × 103 kJ

Accepted Answer

A)  − 5 × 102 kJ 
B)  − 2 × 102 kJ 
C)  − 8 × 102 kJ 
D)  +4.8 × 103 kJ 
A)  − 5 × 102 kJ 
B)  − 2 × 102 kJ 
C)  − 8 × 102 kJ 
D)  +4.8 × 103 kJ

Question 18

The United States relies upon petroleum as its primary energy source.

Accepted Answer

A) True 
 B)False

Question 19

What term is used to most accurately describe the energy flow from a warm object to a cooler one?

Accepted Answer

A)  heat 
B)  work 
C)  cascade 
D)  acceleration 
A)  heat 
B)  work 
C)  cascade 
D)  acceleration

Question 20

Under constant volume conditions, the internal energy equals the:

Accepted Answer

A)  entropy 
B)  insulation capacity 
C)  transduction 
D)  heat flow 
A)  entropy 
B)  insulation capacity 
C)  transduction 
D)  heat flow

An proton accelerated to a velocity of 3.81 × 10³ m/s will have more energy than an electron accelerated to the same velocity.

How much energy is required to warm 175 mL of water at 18.5 ° C to 85.0 ° C? Assume the specific heat of water to be 4.18 J/ g ° C.

A chemical reaction in which the bonds formed have more energy than those broken is referred to as a(n):

If a 136.51 g Al rod (c = 0.900 J/g ° C) is at 100.0 ° C and placed into 250.0 g of water at 21.8 ° C, what is the temperature of the system (rod + water) at equilibrium assuming no losses to the surroundings?

The chemical reaction by which one mole of a compound is formed from its elements in their standard states is best described as a(n):

What amount of heat is required to warm 1.5 kg of ice at − 15.0 ° C to steam at 150.0 ° C? Assume the specific heat of water to be 4.18 J/ g ° C, Δ H_fus = 3.35 J/g, and Δ H_vap = 2.26 kJ/g.

The amount of heat required to raise one gram of a material 1 ° C is that material's:

What is the kinetic energy of a single He atom traveling at 2.0 × 10⁴ m/s?

Fuel cells offer the promise of a 100% energy usage from an engine.

Generating stations using fossil fuels to produce electrical energy rely upon:

Which of the following reactions notate the formation reaction of CO( g )?

The phase transition from liquid to solid phases is known as:

The study of chemical energy and the transfer of this energy provide a crucial link between chemistry and engineering.

Given the following heat of formation values, calculate the heat of reaction for: Na( s ) + Cl₂( g ) → NaCl( s ) Δ H_f values in kJ/mol for: Na( s ) = 0, Na( g ) = 108.7, Cl₂( g ) = 0, NaCl( s ) = − 411.0

Thermal energy is directly related to the motion of atoms and molecules of the object in question.

What is the kinetic energy of a 22,500 lb truck traveling at 55 mi/hr?

If a lighter contains 4.0 mL of liquid butane (den = 0.8 g/cm³), how much potential energy does the lighter contain according to the combustion of butane: 2 C₄H₁₀( g ) + 13 O₂( g ) → 8 CO₂( g ) + 10 H₂O( l ) Δ H = − 5.75 × 10³ kJ

The United States relies upon petroleum as its primary energy source.

What term is used to most accurately describe the energy flow from a warm object to a cooler one?

Under constant volume conditions, the internal energy equals the:

Introduction to Chemistry

Atoms and Molecules

Molecules Moles Chemical Equations

Stoichiometry

Gases

The Periodic Table and Atomic Structure

Chemical Bonding and Molecular Structure

Molecules and Materials

Entropy and the Second Law of Thermodynamics

Chemical Kinetics

Chemical Equilibrium

Electrochemistry

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Exam 9: Energy and Chemistry

An proton accelerated to a velocity of 3.81 × 103 m/s will have more energy than an electron accelerated to the same velocity.

How much energy is required to warm 175 mL of water at 18.5 ° C to 85.0 ° C? Assume the specific heat of water to be 4.18 J/ g ° C.

A chemical reaction in which the bonds formed have more energy than those broken is referred to as a(n):

If a 136.51 g Al rod (c = 0.900 J/g ° C) is at 100.0 ° C and placed into 250.0 g of water at 21.8 ° C, what is the temperature of the system (rod + water) at equilibrium assuming no losses to the surroundings?

The chemical reaction by which one mole of a compound is formed from its elements in their standard states is best described as a(n):

What amount of heat is required to warm 1.5 kg of ice at − 15.0 ° C to steam at 150.0 ° C? Assume the specific heat of water to be 4.18 J/ g ° C, Δ Hfus = 3.35 J/g, and Δ Hvap = 2.26 kJ/g.

The amount of heat required to raise one gram of a material 1 ° C is that material's:

What is the kinetic energy of a single He atom traveling at 2.0 × 104 m/s?

Fuel cells offer the promise of a 100% energy usage from an engine.

Generating stations using fossil fuels to produce electrical energy rely upon:

Which of the following reactions notate the formation reaction of CO( g )?

The phase transition from liquid to solid phases is known as:

The study of chemical energy and the transfer of this energy provide a crucial link between chemistry and engineering.

Given the following heat of formation values, calculate the heat of reaction for: Na( s ) + Cl2( g ) → NaCl( s ) Δ Hf values in kJ/mol for: Na( s ) = 0, Na( g ) = 108.7, Cl2( g ) = 0, NaCl( s ) = − 411.0

Thermal energy is directly related to the motion of atoms and molecules of the object in question.

What is the kinetic energy of a 22,500 lb truck traveling at 55 mi/hr?

If a lighter contains 4.0 mL of liquid butane (den = 0.8 g/cm3), how much potential energy does the lighter contain according to the combustion of butane: 2 C4H10( g ) + 13 O2( g ) → 8 CO2( g ) + 10 H2O( l ) Δ H = − 5.75 × 103 kJ

The United States relies upon petroleum as its primary energy source.

What term is used to most accurately describe the energy flow from a warm object to a cooler one?

Under constant volume conditions, the internal energy equals the:

Introduction to Chemistry

Atoms and Molecules

Molecules Moles Chemical Equations

Stoichiometry

Gases

The Periodic Table and Atomic Structure

Chemical Bonding and Molecular Structure

Molecules and Materials

Entropy and the Second Law of Thermodynamics

Chemical Kinetics

Chemical Equilibrium

Electrochemistry

Filters

An proton accelerated to a velocity of 3.81 × 10³ m/s will have more energy than an electron accelerated to the same velocity.

What amount of heat is required to warm 1.5 kg of ice at − 15.0 ° C to steam at 150.0 ° C? Assume the specific heat of water to be 4.18 J/ g ° C, Δ H_fus = 3.35 J/g, and Δ H_vap = 2.26 kJ/g.

What is the kinetic energy of a single He atom traveling at 2.0 × 10⁴ m/s?

Given the following heat of formation values, calculate the heat of reaction for: Na( s ) + Cl₂( g ) → NaCl( s ) Δ H_f values in kJ/mol for: Na( s ) = 0, Na( g ) = 108.7, Cl₂( g ) = 0, NaCl( s ) = − 411.0

If a lighter contains 4.0 mL of liquid butane (den = 0.8 g/cm³), how much potential energy does the lighter contain according to the combustion of butane: 2 C₄H₁₀( g ) + 13 O₂( g ) → 8 CO₂( g ) + 10 H₂O( l ) Δ H = − 5.75 × 10³ kJ