Energy Transfer and Attraction
When a substance is getting warmer that usually means energy is going in or out?
Energy is going in/
My molecules were moving around each other, now they're moving in place, what happened?
Energy was removed and my substance went from being a liquid to a solid
Matter is anything that has _________ and ________
volume and weight
Oxygen doesn't like to be a liquid because...
It has a weak attraction
On the macro level I see ice forming, on the micro level I would see...
molecules slowing down
True or False, a phase that has lots of kinetic energy also has a lot of attraction
False
Do solids or gases have more kinetic energy?
Gases
Think of a picture of a campfire. What parts are matter what part aren't
Matter: Wood, smoke
Not matter: fire/heat, light
In order to move from a gas to liquid, oxygen needs
To lose a lot of energy/ get really cold
On the macro level I see water boiling and evaporating, on the micro level I would see...
Molecules moving faster and far from each other
Substances with a stronger attraction is more likely to be in which phase? Gas or Solid?
Solid
Substances change phase when either molecular attraction or this type of energy win the tug of war.
Kinetic Energy
Molecules in a gas move
away from each other
Different substances have different levels of attraction, but the level of molecular attraction for any one substance is always_____________
The same
I have two liquid substances, energy is being added to them. The one with ___________ attraction would be the first to change to a gas
Weak/weaker
If molecules are slowing down, energy is probably getting transferred...
out of the substance
If you add A TON of energy to a solid it might turn into a gas, also known as this doing this.
Sublimate
Molecules in a solid move...
in place
What are the two things at play in the tug of war that determines a phase?
Attraction and kinetic energy
I have two liquid substances losing energy, the one with ____________ attraction would be the first to change into a sold
strong/stronger
Substances with an incredibly weak attraction will probably be in this phase.
Gas
Two substances are at the same temperature. Substance A is a gas and Substance B is a liquid? Which one has molecules that move around each other?
Substance B
Molecules in a liquid move...
around each other
What does liquid oxygen look like?
Blue
Draw a macro and micro sketch of ice
.