Quiz On Melting, Freezing & Boiling Point thumbnail
Quiz On Melting, Freezing & Boiling Point thumbnail

Quiz On Melting, Freezing & Boiling Point

3rd - University grade
Played 14 times
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Preview (20 questions)
1 Question
30 seconds
Q.

When a solid turns into a liquid it is called ________.


Boiling

Melting

Freezing

2 Question
30 seconds
Q.

There are only two elements with a liquid standard state. What are they?


Mercury and Bromine

Mercury and Uranium

Gold and Bromine

3 Question
30 seconds
Q.

When a liquid is heated, it eventually reaches a temperature at which the vapor pressure is large enough that bubbles form inside the body of the liquid. This temperature is called the ___________ point.


Freezing

Melting

Boiling

4 Question
30 seconds
Q.

The normal boiling point of water is ______.


10°C

100°C*

100°C

5 Question
30 seconds
Q.

Measurements of the melting point of a solid can also provide information about the _________ of the substance.


Purity

Temperature

Weight

6 Question
30 seconds
Q.

A liquid can become supercooled because the particles in a solid are packed in a regular structure that is characteristic of that particular substance.


True

False

7 Question
30 seconds
Q.

Pressure cookers are equipped with a valve that lets gas escape when the pressure inside the pot exceeds some __________ value.


Increased

Decreased

Fixed

8 Question
30 seconds
Q.

At 10,000 feet above sea level, the pressure of the atmosphere is only _______ mmHg.


526

500

498

9 Question
30 seconds
Q.

Water boils when its vapor pressure is 526 mmHg, which occurs at a temperature of ______.


90°C

100°C

101°C

10 Question
30 seconds
Q.

Liquids boil when their vapor pressure is _________ to the pressure exerted on the liquid by its surroundings.


Higher

Equal

Lower

11 Question
30 seconds
Q.

Liquids have a characteristic temperature at which they turn into solids, known as their __________ point.


Melting

Boiling

Freezing

12 Question
30 seconds
Q.

The freezing point of pure water at standard atmospheric pressure is ________.


0°C

90°C

100°C

13 Question
30 seconds
Q.

The melting point of a solid and the freezing point of the liquid are different.


True

False

14 Question
30 seconds
Q.

Substances can be cooled below their freezing points without the formation of a solid. Such liquids are known as __________ liquids.


Amorphous

Pure

Supercooled

15 Question
30 seconds
Q.

At sea level, it is the pressure of ________ that causes water to boil at 100°C.


Air

Water

Heat

16 Question
30 seconds
Q.

A compound’s melting point is determined by the force of _________ between molecules and symmetry.


Gravitation

Attraction

Distance

17 Question
30 seconds
Q.

A molecule’s boiling point is based on its ________.


Mass

Atomic number

Structure

18 Question
30 seconds
Q.

A liquid at higher pressure has a higher boiling point than when the atmospheric pressure of that liquid is lower.


True

False

19 Question
30 seconds
Q.

The air pressure in an open system is most definitely the atmosphere on ________.


Gas

Earth

Liquid

20 Question
30 seconds
Q.

Ethers have a lower boiling point than alkanes.


True

False

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