Conceptual Questions About Gases And Solutions
- 1.
Why are two nonpolar substances able to dissolve in each other?
- A.
There is no attractive force between them
- B.
Nonpolar substances cannot dissolve in each other.
- C.
They combine to produce a plar substance
- D.
There is no repulsive force between them.
Correct Answer
D. There is no repulsive force between them. -
- 2.
How does the surface tension of water compare with the surface tensions of most other liquids?
- A.
It is higher.
- B.
It is lower.
- C.
It is about the same.
Correct Answer
A. It is higher. -
- 3.
Which of the following is primarily responsible for holding water molecules together in the liquid state?
- A.
Dispersion forces
- B.
Polar covalent bonds
- C.
Ionic bonds
- D.
Hydrogen bonds
Correct Answer
D. Hydrogen bonds -
- 4.
What causes water's low vapor pressure?
- A.
Covalent bonding
- B.
Dispersion forces
- C.
Hydrogen bonding
- D.
Ionic attractions
Correct Answer
C. Hydrogen bonding -
- 5.
Which of the following is NOT a result of water's high heat capacity?
- A.
The temperature of water goes up rapidly as it absorbs solar energy.
- B.
For the same increase in temperature, iron needs to absorb only about one-tenth as much energy as water.
- C.
The temperatures of cities near large bodies of water are moderated.
- D.
Water is an excellent medium for the storage of solar energy.
Correct Answer
A. The temperature of water goes up rapidly as it absorbs solar energy. -
- 6.
How does the boiling point of water compare with the boiling points of other molecules of similar size?
- A.
It is higher.
- B.
It is lower.
- C.
It is about the same.
Correct Answer
A. It is higher. -
- 7.
As a result of water's high heat of vaporization, differences in temperature extremes on earth are ___________
- A.
Less than they would otherwise be
- B.
Greater than they would otherwise be
- C.
There is no effect on temperature extremes.
Correct Answer
A. Less than they would otherwise be -
- 8.
Which of the following is most directly responsible for water's high heat of vaporization and high boiling point?
- A.
Ionic attractions
- B.
Dispersion forces
- C.
Hydrogen-bonding
- D.
Covalent bonding
Correct Answer
C. Hydrogen-bonding -
- 9.
Which of the following is responsible for the relatively high boiling point of ammonia?
- A.
Polar covalent bonding
- B.
Metallic bonding
- C.
Hydrogen-bonding
- D.
Ionic bonding
Correct Answer
C. Hydrogen-bonding -
- 10.
The condensation of steam is a(n) _________
- A.
Electrolytic process
- B.
Catalytic process
- C.
Exothermic process
- D.
Endothermic process
Correct Answer
C. Exothermic process -
- 11.
What energy change occurs when 100 g of ice melts to form 100 g of water at 0 degrees C?
- A.
No energy change occurs
- B.
8 kcal is absorbed by the ice.
- C.
8 kcal is released by the ice.
Correct Answer
B. 8 kcal is absorbed by the ice. -
- 12.
The fact that ice is less dense than water is related to the fact that ____________
- A.
The molecules of ice are held to each other by covalent bonding
- B.
Ice has a molecular structure that is an open framework held together by hydrogen bonding
- C.
Ice has a molecular structure in which water molecules are arranged randomly
- D.
The molecular structure of ice is much less orderly than that of water
Correct Answer
B. Ice has a molecular structure that is an open framework held together by hydrogen bonding -
- 13.
Which is more soluble in water?
- A.
Ethane - a hydrocarbon
- B.
Iso-propanol - an alcohol
Correct Answer
B. Iso-propanol - an alcohol -
- 14.
Which is more soluble in gasoline (a hydrocarbon)
- A.
Carbon tetrachloride
- B.
Sodium chloride
Correct Answer
A. Carbon tetrachloride -
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Mar 18, 2022Quiz Edited by
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Feb 13, 2010Quiz Created by
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