Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
10 Cards in this Set
- Front
- Back
|
What are the factors determining the rate of evaporation?
1 2 3 4 5 |
1. temperature
2. surface area 3.strength of air current 4.air pressure 6.what type of liquid |
|
|
The change of a substance from a liquid to a gas is called ______.
|
evaporation
|
|
|
When does evaporation occur?
|
When a molecule near the surface of the liquid escapes into the air.
|
|
|
Liquids which evaporate rapidly are said to be ______, while liquids that evaporate slowly are ______.
|
volatile
nonvolatile |
|
|
Evaporation usually takes place only at the ______ of a liquid.
|
surface
|
|
|
When evaporation occurs throughout the liquid, we say that the liquid has begun to ____.
|
boil
|
|
|
The temperature at which a liquid boils is called the ___ ___.
|
boiling point
|
|
|
Why is it impossible to heat water to more than 100 deg. C?
|
Because the water is at the boiling point and becoming a vapor.
|
|
|
When the air pressure (altitude) is increased, what happens to the boiling point?
|
The boiling point will decrease if the altitude is increased.
|
|
|
Can you control the air pressure on a liquid, thus be able to control the boiling point?
|
Yes, you can observe this with a pressure cooker.
|
