Kinetic Theory & Intermolecular Forces Review

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Transcript of Kinetic Theory & Intermolecular Forces Review

KineticTheory:

How Particles Behave

ENERGY AND SPACE B/W PARTICLESThe particles in Solids, Liquids, and Gases have different:

WHAT DO YOU DO WHEN YOU’RE COLD?

Vibrating

WHAT HAPPENS WHEN LIQUID IS SPILLED?

Flowing around each other

HOW DO GASES BEHAVE?

Colliding randomly

QUESTION 1:

QUESTION 2:As a liquid becomes a solid, what happens to its particles?

DEMO:

QUESTION 3:What kind of phase change is occurring here?

QUESTION 4:What kind of phase change is occurring here?

SOLID

LIQUID

GAS

QUESTION 5:Compare gases and liquids: What is the difference in energy?

SO IF YOU HAVE MORE ENERGY, YOU CAN PROBABLY ESCAPE THIS:

QUESTION 6:Which state of matter has the highest particle attraction?

DEMO:

OPPOSITES ATTRACT:

OPPOSITES ATTRACT:

Hydrogen Bonds

DEMO:

QUESTION 7:What kind of bonds are formed in water that allow insects to walk on it?

DENSITY:States of Matter

QUESTION 8:Normally, what phase of matter is the most dense?

ALL SOLIDS SINK, RIGHT?

DEMO:

THERMAL EXPANSION:

WHY HOLD JAR UNDER HOT WATER?

EXPANSION IN SOLIDS:

EXPANSION IN LIQUIDS:

EXPANSION IN GAS:

DO ALL SOLIDS SHRINK WHEN COOLED?

Hydrogen Bonds

There are spaces!

What does the cold water absorb heat from?

DEMO:Lower pressure leads to lower boiling temperature