Chapter 10 Quiz 2 - Chemistry

14 Questions | By Muitran | Last updated: Mar 20, 2022 | Total Attempts: 73

Questions

Settings

Create your own Quiz

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?
- 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 ___________.
- 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
- A.
  
  True
- B.
  
  False
11.

Matter with high kinetic energy tends to clump together.
- A.
  
  True
- B.
  
  False
12.

_____________ reaction occurs naturally without any outside input into the system.
- A.
  
  An endothermic
- B.
  
  An endothermic
- C.
  
  A spontaneous
- D.
  
  A nonspontaneous
13.

Which of the following conditions are necessary for a good calorimeter to be useful?
- A.
  
  Made of an insulator
- B.
  
  Made of a conductor
- C.
  
  Maintains an open system
- D.
  
  Ensures good energy transfer between the contents and the outer environment
14.

A _____________ is an apparatus used to determine the enthalpy change of a reaction.