Question 1

The normal body temperature is 98.6 ° F. What is the temperature in Kelvin?

Accepted Answer

A) 23 K 
B) 37 K 
C) 119 K 
D) 177 K 
E) 310. K 
A) 23 K 
B) 37 K 
C) 119 K 
D) 177 K 
E) 310. K

Question 2

Which fossil fuel contains the most sulfur?

Accepted Answer

A) Natural gas 
B) Oil 
C) Coal 
D) They all contain about the same amount of sulfur. 
E) None of them contain sulfur. 
A) Natural gas 
B) Oil 
C) Coal 
D) They all contain about the same amount of sulfur. 
E) None of them contain sulfur.

Question 3

What is the melting temperature in Kelvin if gold melts at 1063 ° C?

Accepted Answer

A) 300 K 
B) 572 K 
C) 790 K 
D) 1336 K 
E) 1945 K 
A) 300 K 
B) 572 K 
C) 790 K 
D) 1336 K 
E) 1945 K

Question 4

What is the name given to the plan to reduce international greenhouse gas emissions?

Accepted Answer

A) Geneva Accord 
B) Climate Law 
C) Kyoto Protocol 
D) Hiroshima Plan 
E) none of the above 
A) Geneva Accord 
B) Climate Law 
C) Kyoto Protocol 
D) Hiroshima Plan 
E) none of the above

Question 5

How many Calories are released from a burning nut which releases 15,600 J of heat?

Accepted Answer

A) 3.73 Cal 
B) 15.6 J 
C) 65.2 Cal 
D) 269 Cal 
E) 3.7 × 103 Cal 
A) 3.73 Cal 
B) 15.6 J 
C) 65.2 Cal 
D) 269 Cal 
E) 3.7 × 103 Cal

Question 6

Which of these is an example of an exothermic system?
I. Nuclear fission
II. Evaporation of alcohol
III. Burning of gasoline

Accepted Answer

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

Question 7

How many kilowatt-hours is generated  when burning 0.562 g of graphite produces 18.0 kJ of heat?

Accepted Answer

A) 5 × 10 − 6 kWh 
B) 5 × 10 − 5 kWh 
C) 5 × 10 − 4 kWh 
D) 5 × 10 − 3 kWh 
E) 5 × 103 kWh 
A) 5 × 10 − 6 kWh 
B) 5 × 10 − 5 kWh 
C) 5 × 10 − 4 kWh 
D) 5 × 10 − 3 kWh 
E) 5 × 103 kWh

Question 8

Which of these is not a unit for measuring energy?

Accepted Answer

A) Kelvin 
B) Power 
C) Quad 
D) Calorie 
E) Joule 
A) Kelvin 
B) Power 
C) Quad 
D) Calorie 
E) Joule

Question 9

Which of these is\are the  correct unit(s)for measuring power?
I. Joule
II. J\s
III. KWh
IV. Watt

Accepted Answer

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

Question 10

Ethanol boils at a temperature of 78.5 ° C. What is the boiling point in ° F?

Accepted Answer

A) 46 ° F 
B) 109 ° F 
C) 173 ° F 
D) 194 ° F 
E) 372 ° F 
A) 46 ° F 
B) 109 ° F 
C) 173 ° F 
D) 194 ° F 
E) 372 ° F

Question 11

Which of these 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

Question 12

Which of the following is incorrect regarding photosynthesis?

Accepted Answer

A) Carbon dioxide is a reactant. 
B) Oxygen is a product. 
C) The process is exothermic. 
D) Water is a reactant. 
A) Carbon dioxide is a reactant. 
B) Oxygen is a product. 
C) The process is exothermic. 
D) Water is a reactant.

Question 13

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

Accepted Answer

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

Question 14

Which of these processes will result in a net decrease in entropy?

Accepted Answer

A) Evaporation of bromine. 
B) Freezing of ethyl alcohol. 
C) Combustion of natural gas. 
D) Explosion of ammonium nitrate. 
E) Dissolving sodium chloride and pure water. 
A) Evaporation of bromine. 
B) Freezing of ethyl alcohol. 
C) Combustion of natural gas. 
D) Explosion of ammonium nitrate. 
E) Dissolving sodium chloride and pure water.

Question 15

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 16

Which of these statements concerning the 1st law of thermodynamics is incorrect ?

Accepted Answer

A) Energy is neither created nor destroyed. 
B) A perpetual motion machine can not exist. 
C) The total energy of the universe is constant. 
D) Chemical energy can be converted to thermal energy. 
E) Energy cannot be converted from one form to the other . 
A) Energy is neither created nor destroyed. 
B) A perpetual motion machine can not exist. 
C) The total energy of the universe is constant. 
D) Chemical energy can be converted to thermal energy. 
E) Energy cannot be converted from one form to the other .

Question 17

Which of these is not an environmental problem produced by the burning of fossil fuels?

Accepted Answer

A) Formation of smog. 
B) Formation of acid rain. 
C) Elevated levels of NO. 
D) Elevated levels of CO. 
E) Elevated flooding of rivers. 
A) Formation of smog. 
B) Formation of acid rain. 
C) Elevated levels of NO. 
D) Elevated levels of CO. 
E) Elevated flooding of rivers.

Question 18

What is the coefficient in front of O2 when the equation is balanced?
__C8H18 + __O2 → __CO2 + __H2O

Accepted Answer

A) 30 
B) 32 
C) 34 
D) 25 
E) 9 
A) 30 
B) 32 
C) 34 
D) 25 
E) 9

Question 19

What is the coefficient in front of water when the equation is balanced?
__C5H12 + __O2 → __CO2 + __H2O

Accepted Answer

A) 2 
B) 6 
C) 10 
D) 12 
E) 16 
A) 2 
B) 6 
C) 10 
D) 12 
E) 16

Question 20

Which of these does not involve an increase in the random motion of a system?

Accepted Answer

A) Burning log 
B) Freezing water 
C) Exploding bomb 
D) Hot skillet 
E) Helium escaping from a balloon 
A) Burning log 
B) Freezing water 
C) Exploding bomb 
D) Hot skillet 
E) Helium escaping from a balloon

The normal body temperature is 98.6 ° F. What is the temperature in Kelvin?

Which fossil fuel contains the most sulfur?

What is the melting temperature in Kelvin if gold melts at 1063 ° C?

What is the name given to the plan to reduce international greenhouse gas emissions?

How many Calories are released from a burning nut which releases 15,600 J of heat?

Which of these is an example of an exothermic system? I. Nuclear fission II. Evaporation of alcohol III. Burning of gasoline

How many kilowatt-hours is generated when burning 0.562 g of graphite produces 18.0 kJ of heat?

Which of these is not a unit for measuring energy?

Which of these is\are the correct unit(s)for measuring power? I. Joule II. J\s III. KWh IV. Watt

Ethanol boils at a temperature of 78.5 ° C. What is the boiling point in ° F?

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

Which of the following is incorrect regarding photosynthesis?

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

Which of these processes will result in a net decrease in entropy?

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

Which of these statements concerning the 1^st law of thermodynamics is incorrect ?

Which of these is not an environmental problem produced by the burning of fossil fuels?

What is the coefficient in front of O₂ when the equation is balanced? C₈H₁₈ + O₂ → CO₂ + H₂O

What is the coefficient in front of water when the equation is balanced? C₅H₁₂ + O₂ → CO₂ + H₂O

Which of these does not involve an increase in the random motion of a system?

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

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Exam 9: Energy for Today

The normal body temperature is 98.6 ° F. What is the temperature in Kelvin?

Which fossil fuel contains the most sulfur?

What is the melting temperature in Kelvin if gold melts at 1063 ° C?

What is the name given to the plan to reduce international greenhouse gas emissions?

How many Calories are released from a burning nut which releases 15,600 J of heat?

Which of these is an example of an exothermic system? I. Nuclear fission II. Evaporation of alcohol III. Burning of gasoline

How many kilowatt-hours is generated when burning 0.562 g of graphite produces 18.0 kJ of heat?

Which of these is not a unit for measuring energy?

Which of these is\are the correct unit(s)for measuring power? I. Joule II. J\s III. KWh IV. Watt

Ethanol boils at a temperature of 78.5 ° C. What is the boiling point in ° F?

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

Which of the following is incorrect regarding photosynthesis?

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

Which of these processes will result in a net decrease in entropy?

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

Which of these statements concerning the 1st law of thermodynamics is incorrect ?

Which of these is not an environmental problem produced by the burning of fossil fuels?

What is the coefficient in front of O2 when the equation is balanced? __C8H18 + __O2 → __CO2 + __H2O

What is the coefficient in front of water when the equation is balanced? __C5H12 + __O2 → __CO2 + __H2O

Which of these does not involve an increase in the random motion of a system?

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

Filters

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

Which of these statements concerning the 1^st law of thermodynamics is incorrect ?

What is the coefficient in front of O₂ when the equation is balanced? C₈H₁₈ + O₂ → CO₂ + H₂O

What is the coefficient in front of water when the equation is balanced? C₅H₁₂ + O₂ → CO₂ + H₂O