Question 1

Which temperature equality is correct?

Accepted Answer

A) 0 K = 273oC 
B) 0 K = − 273oC 
C) 0 K = 273oF 
D) 0 K = − 273oF 
A) 0 K = 273oC 
B) 0 K = − 273oC 
C) 0 K = 273oF 
D) 0 K = − 273oF

Question 2

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 3

Which of these statements is incorrect of heat ?

Accepted Answer

A) Heat is essentially energy. 
B) Entropy is another name for heat. 
C) Heat is random molecular motion. 
D) Heat is measured in units of joules. 
E) Heat involves the transfer of energy from a warmer body to a cooler one. 
A) Heat is essentially energy. 
B) Entropy is another name for heat. 
C) Heat is random molecular motion. 
D) Heat is measured in units of joules. 
E) Heat involves the transfer of energy from a warmer body to a cooler one.

Question 4

What percent of the energy use in the United States comes from fossil fuels?

Accepted Answer

A) 25% 
B) 45% 
C) 65% 
D) 82% 
E) 95% 
A) 25% 
B) 45% 
C) 65% 
D) 82% 
E) 95%

Question 5

If the chemical reaction A + B → C is exothermic, then which of the following is true?

Accepted Answer

A) C → A + B is exothermic. 
B) C → A + B is endothermic. 
C) C must be a gas. 
D) C cannot be a gas. 
E) More than one answer is correct. 
A) C → A + B is exothermic. 
B) C → A + B is endothermic. 
C) C must be a gas. 
D) C cannot be a gas. 
E) More than one answer is correct.

Question 6

Energy cannot be created nor destroyed, only transferred is known as the ____.

Accepted Answer

A) 1st law of thermodynamics 
B) 2nd law of thermodynamics 
C) 3rd law of thermodynamics 
D) law of heat conservation 
E) law of entropy conservation 
A) 1st law of thermodynamics 
B) 2nd law of thermodynamics 
C) 3rd law of thermodynamics 
D) law of heat conservation 
E) law of entropy conservation

Question 7

Which of these compounds can combine with moisture in the air resulting in the formation acid rain?

Accepted Answer

A) CO 
B) PAN 
C) NO2 
D) O3 
E) CO2 
A) CO 
B) PAN 
C) NO2 
D) O3 
E) CO2

Which temperature equality is correct?

How many calories are there in 3.76 joules?

Which of these statements is incorrect of heat ?

What percent of the energy use in the United States comes from fossil fuels?

If the chemical reaction A + B → C is exothermic, then which of the following is true?

Energy cannot be created nor destroyed, only transferred is known as the ____.

Which of these compounds can combine with moisture in the air resulting in the formation acid rain?

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

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Exam 9: Energy for Today

Which temperature equality is correct?

How many calories are there in 3.76 joules?

Which of these statements is incorrect of heat ?

What percent of the energy use in the United States comes from fossil fuels?

If the chemical reaction A + B → C is exothermic, then which of the following is true?

Energy cannot be created nor destroyed, only transferred is known as the ____.

Which of these compounds can combine with moisture in the air resulting in the formation acid rain?

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