Chapter 10 Quiz 2 - Chemistry
10 Questions
| Total Attempts: 48
Questions and Answers
- 1.The SI unit of energy is the __________. (Do not use the abbreviation.)
- 2.The _______ is a unit of energy defined as the amount of heat needed to raise one gram of water by one degree Celsius.
- 3.The ____________ is the amount of energy required to raise one gram of a substance by one degree Celsius.
- A.
Kelvin
- B.
Specific heat
- C.
Calorie
- D.
Temperature
- 4.What is the symbol for enthalpy?
- A.
E
- B.
T
- C.
H
- D.
W
- 5.
![Mathematically, what does mean? - ProProfs]( "Mathematically, what does mean?")
Mathematically, what does mean?- A.
Initial - final
- B.
Final - initial
- C.
Initial + final
- D.
Final + initial
- 6.
![When the value of is negative, that means that a chemical reaction ___________. - ProProfs]( "When the value of is negative, that means that a chemical reaction ___________.")
When the value of is negative, that means that a chemical reaction ___________.- A.
Is producing heat
- B.
Is taking in heat
- C.
Is spontaneous
- D.
Is nonspontaneous
- 7.Entropy is defined as the _____________.
- A.
Randomness of a system
- B.
Heat required to complete a reaction
- C.
Spontaneity of a chemical reaction
- D.
Work a system is able to perform
- 8.The second law of thermodynamics states that ____________.
- A.
Heat will always move to places of lower termperatures
- B.
Energy can neither be created nor destroyed
- C.
The mass of the universe is constant
- D.
The entropy of the universe is always increasing
- 9.Energy will not disperse into areas of lower energy.
- A.
True
- B.
False
- 10.
![A positive denotes a system that has absorbed energy, resulting in higher potential energy of the products - ProProfs]( "A positive denotes a system that has absorbed energy, resulting in higher potential energy of the products")
A positive denotes a system that has absorbed energy, resulting in higher potential energy of the products- A.
True
- B.
False
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