Question 1

The rate of energy output or input is known as _____.

Accepted Answer

A)  heat 
B)  work 
C)  power 
D)  enthalpy 
E)  entropy 
A)  heat 
B)  work 
C)  power 
D)  enthalpy 
E)  entropy

Question 2

If the normal body temperature is 98.6 ° F, what is the corresponding temperature in ° C?

Accepted Answer

A)  23.0 ° C 
B)  37.0 ° C 
C)  119 ° C 
D)  177 ° C 
E)  372 ° C 
A)  23.0 ° C 
B)  37.0 ° C 
C)  119 ° C 
D)  177 ° C 
E)  372 ° C

Question 3

Which of the following is important for the formation of acid rain?

Accepted Answer

A)  SO2 
B)  H2O 
C)  NO2 
D)  NO 
E)  All of these 
A)  SO2 
B)  H2O 
C)  NO2 
D)  NO 
E)  All of these

Question 4

In thermodynamics, the substance we are studying is called the _____ and everything else is referred to as the _____.

Accepted Answer

A)  inlet; the outlet 
B)  system; enthalpy 
C)  state; surroundings 
D)  system; the environment 
E)  system; surroundings 
A)  inlet; the outlet 
B)  system; enthalpy 
C)  state; surroundings 
D)  system; the environment 
E)  system; surroundings

Question 5

_____ demonstrated that energy is converted from one form to another as long as the total amount of energy is conserved.

Accepted Answer

A)  Thomas Edison 
B)  James Watt 
C)  Enrico Fermi 
D)  Ernest Rutherford 
E)  James Joule 
A)  Thomas Edison 
B)  James Watt 
C)  Enrico Fermi 
D)  Ernest Rutherford 
E)  James Joule

Question 6

How many joules of heat can be produced from a 170-Calorie package of crackers?

Accepted Answer

A)  7.11  × 105 J 
B)  4.07 × 104 J 
C)  41.0 J 
D)  24.6 J 
E)  0.0246 J 
A)  7.11  × 105 J 
B)  4.07 × 104 J 
C)  41.0 J 
D)  24.6 J 
E)  0.0246 J

Question 7

Which of these involve(s) a net increase in entropy?
I. The condensation of steam
II. The freezing of methanol
III. The evaporation of ethanol
IV. The combustion of fossil fuels

Accepted Answer

A)  III only 
B)  I and II 
C)  II and III 
D)  I, II, and IV 
E)  III, and IV 
A)  III only 
B)  I and II 
C)  II and III 
D)  I, II, and IV 
E)  III, and IV

Question 8

The capacity to do work is known as _____.

Accepted Answer

A)  heat 
B)  thermodynamics 
C)  energy 
D)  enthalpy 
E)  entropy 
A)  heat 
B)  thermodynamics 
C)  energy 
D)  enthalpy 
E)  entropy

Question 9

How many calories are there in 3.76 joules?

Accepted Answer

A)  0.899 calories 
B)  1.11 calories 
C)  15.7 calories 
D)  90 calories 
E)  1.6 × 105 calories 
A)  0.899 calories 
B)  1.11 calories 
C)  15.7 calories 
D)  90 calories 
E)  1.6 × 105 calories

Question 10

Which of the following are examples of endothermic processes?
I. A cold pack
II. The evaporation of alcohol
III. The burning of gasoline
 IV.   The combustion of methanol

Accepted Answer

A)  I and IV 
B)  II and III 
C)  I and III 
D)  I and II 
E)  I, II, and III 
A)  I and IV 
B)  II and III 
C)  I and III 
D)  I and II 
E)  I, II, and III

Question 11

Which of the following is incorrect about photosynthesis process?

Accepted Answer

A)  Carbon dioxide is a reactant in this process. 
B)  Oxygen is a product of this process. 
C)  The process is exothermic. 
D)  Water is a reactant in this process. 
E)  The process is endothermic. 
A)  Carbon dioxide is a reactant in this process. 
B)  Oxygen is a product of this process. 
C)  The process is exothermic. 
D)  Water is a reactant in this process. 
E)  The process is endothermic.

Question 12

Which of the following compounds is primarily responsible for the brown color of smog?

Accepted Answer

A)  CO 
B)  CO2 
C)  NO2 
D)  O3 
E)  NO 
A)  CO 
B)  CO2 
C)  NO2 
D)  O3 
E)  NO

The rate of energy output or input is known as _____.

If the normal body temperature is 98.6 ° F, what is the corresponding temperature in ° C?

Which of the following is important for the formation of acid rain?

In thermodynamics, the substance we are studying is called the _ and everything else is referred to as the _.

_____ demonstrated that energy is converted from one form to another as long as the total amount of energy is conserved.

How many joules of heat can be produced from a 170-Calorie package of crackers?

Which of these involve(s) a net increase in entropy? I. The condensation of steam II. The freezing of methanol III. The evaporation of ethanol IV. The combustion of fossil fuels

The capacity to do work is known as _____.

How many calories are there in 3.76 joules?

Which of the following are examples of endothermic processes? I. A cold pack II. The evaporation of alcohol III. The burning of gasoline IV. The combustion of methanol

Which of the following is incorrect about photosynthesis process?

Which of the following compounds is primarily responsible for the brown color of smog?

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Exam 9: Energy for Today

The rate of energy output or input is known as _____.

If the normal body temperature is 98.6 ° F, what is the corresponding temperature in ° C?

Which of the following is important for the formation of acid rain?

In thermodynamics, the substance we are studying is called the _____ and everything else is referred to as the _____.

_____ demonstrated that energy is converted from one form to another as long as the total amount of energy is conserved.

How many joules of heat can be produced from a 170-Calorie package of crackers?

Which of these involve(s) a net increase in entropy? I. The condensation of steam II. The freezing of methanol III. The evaporation of ethanol IV. The combustion of fossil fuels

The capacity to do work is known as _____.

How many calories are there in 3.76 joules?

Which of the following are examples of endothermic processes? I. A cold pack II. The evaporation of alcohol III. The burning of gasoline IV. The combustion of methanol

Which of the following is incorrect about photosynthesis process?

Which of the following compounds is primarily responsible for the brown color of smog?

Molecular Reasons

The Chemists Toolbox

Atoms and Elements

Molecules, Compounds, and Chemical Reactions

Chemical Bonding

Organic Chemistry

Light and Color

Nuclear Chemistry

Energy for Tomorrow: Solar and Other Renewable Energy Sources

The Air Around Us

The Liquids and Solids Around Us: Especially Water

Acids and Bases: the Molecules Responsible for Sour and Bitter

Oxidation and Reduction

The Chemistry of Household Products

Biochemistry and Biotechnology

Drugs and Medicine: Healing, Helping, and Hurting

The Chemistry of Food

Nanotechnology Online Only

Filters

In thermodynamics, the substance we are studying is called the _ and everything else is referred to as the _.