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Thermochemistry Review
Test Description: Review of the thermochemistry unit
Instructions: Answer all questions to get your test result.
1) Define endothermic.
A
Energy going into a system
B
Energy being creating by a system
C
Energy being transferred by a system
D
Energy going out of a system
2) Define exothermic.
A
Energy required by a system
B
Energy going into a system
C
Energy being transferred by a system
D
Energy going out of a system
3) Define specific heat
A
The energy required to raise the temperature of one gram of a substance by one degree Celsius
B
The energy released in order to raise the temperature of one gram of a substance by one degree Celsius
C
The energy required to lower the temperature of one gram of a substance by one degree Celsius
D
The energy required to raise the mass of one gram of a substance by one degree Celsius
4) What are the reactants of combustion?
A
Hydrocarbon and oxygen
B
Carbon dioxide and oxygen
C
Carbon dioxide and hydrocarbon
D
Carbon dioxide and water
5) What are the products of combustion?
A
Carbon dioxide and water
B
Carbon dioxide and oxygen
C
Hydrocarbon and oxygen
D
Carbon dioxide and hydrocarbon
6) What is the law of conversation of energy?
A
Energy can be created and destroyed
B
Energy cannot be created or destroyed
C
Energy cannot be destroyed but can be created
D
Energy cannot be created but can be destroyed
7) Which of the following would require the most energy to increase the temperature?
A
Air: 1.02 J/g*C
B
Iron: 0.44 J/g*C
C
Aluminum: 0.90 J/g*C
D
Vegetable Oil: 2.0 J/g*C
8) Which of the following requires the least amount of energy to change the temperature?
A
Glass: 0.84 J/g*C
B
Concrete: 0.88 J/g*C
C
Silver: 0.29 J/g*C
D
Brass: 0.38 J/g*C
9) Which of the following will take the most energy to change the temperature?
A
Helium: 5.30 J/g*C
B
Water: 4.184 J/g*C
C
Lithium: 3.56 J/g*C
D
Vegetable Oil: 2.0 J/g*C
10) Increased levels of carbon dioxide in the atmosphere is a result of which of the following?
A
Decreased combustion due to human activity
B
Increased combustion due to human activity
C
Increased combustion due to natural causes
D
Decreased combustion due to natural causes
*select an answer for all questions
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