Podcast
Questions and Answers
What is the main difference between evaporation and boiling?
What is the main difference between evaporation and boiling?
- Evaporation requires air particles to collide with the liquid, while boiling does not.
- Evaporation occurs only at the surface of a liquid, while boiling occurs throughout the liquid. (correct)
- Evaporation results in a temperature change, while boiling does not.
- Evaporation happens at any temperature, while boiling only occurs at high temperatures.
What is the boiling point of a substance?
What is the boiling point of a substance?
- The temperature at which the substance changes from a liquid to a gas. (correct)
- The temperature at which the substance changes from a solid to a gas.
- The temperature at which the substance changes from a solid to a liquid.
- The temperature at which the substance changes from a gas to a liquid.
What happens when a liquid boils?
What happens when a liquid boils?
- The liquid's temperature decreases until all molecules turn into a gas.
- The liquid's temperature remains constant until all molecules turn into a gas. (correct)
- The liquid's temperature continues to increase.
- The liquid's temperature fluctuates until all molecules turn into a gas.
Which of the following statements about evaporation is not true?
Which of the following statements about evaporation is not true?
If a drop of rubbing alcohol is placed on your hand and on a table, which scenario will result in faster evaporation?
If a drop of rubbing alcohol is placed on your hand and on a table, which scenario will result in faster evaporation?
What happens to the speed of the atoms/molecules in a substance when energy is transferred to it?
What happens to the speed of the atoms/molecules in a substance when energy is transferred to it?
How does temperature relate to the speed of atoms/molecules in a substance?
How does temperature relate to the speed of atoms/molecules in a substance?
What happens to the volume of a substance when its atoms/molecules move faster?
What happens to the volume of a substance when its atoms/molecules move faster?
In what state are the atoms/molecules when a substance is cooling down?
In what state are the atoms/molecules when a substance is cooling down?
What happens to collisions between atoms/molecules when a substance is warmed?
What happens to collisions between atoms/molecules when a substance is warmed?
What is the main consequence of cooling a substance in terms of its volume?
What is the main consequence of cooling a substance in terms of its volume?
Flashcards
Evaporation vs. Boiling
Evaporation vs. Boiling
Evaporation happens only on the surface of a liquid, while boiling happens throughout the liquid.
Boiling Point
Boiling Point
The temperature at which a liquid changes to a gas.
Boiling Temperature
Boiling Temperature
Temperature remains constant during boiling until all liquid becomes gas.
Evaporation requirement (incorrect statement)
Evaporation requirement (incorrect statement)
Signup and view all the flashcards
Faster evaporation scenario
Faster evaporation scenario
Signup and view all the flashcards
Energy & Atom Speed
Energy & Atom Speed
Signup and view all the flashcards
Temperature & Atom Speed
Temperature & Atom Speed
Signup and view all the flashcards
Atom Speed & Volume
Atom Speed & Volume
Signup and view all the flashcards
Cooling & Atoms
Cooling & Atoms
Signup and view all the flashcards
Atom Collisions & Warming
Atom Collisions & Warming
Signup and view all the flashcards
Cooling & Volume
Cooling & Volume
Signup and view all the flashcards
