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Flashcards in Kinetic Theory Deck (24):
1

The energy an object has because of its motion.

Kinetic energy

2

All matter is composed of particles in a constant state of motion

Kinetic theory

3

-gas particles are far apart in comparison to the particles of solids and liquids,
-there is empty space between gas particles
-there is no attractive or repulsive forces between Gas particles
-the motion if one particle of gas is independent of the motion of any other Gas particle
-gasses will fill their container regardless of the containers shape.

Kinetic theory of gases

4

Aimless path of a gas particle

Random walk

5

-Simultaneous collisions of billions of rapidly moving particles in a gas with an object
-force exerted by a gas per unit surface area of an object

Gas pressure

6

As elevation increases atomisoheric pressure decreases because

The density of the air decreases

7

SI unit for pressure

Pascal

8

Temperature is 0 degrees at

STP ( standard temperature and pressure )

9

0 K

-273.15 degrees Celsius

Absolute zero

10

Ability if gases and liquids to flow is what allows them to conform to the shape of their containers

Fluids

11

These intermolecular attractions are what keep the particles in a liquid close together and is why liquids have a definite volume

The particles of the liquid are attracted to each other.

12

The conversion of a liquid to a gas or vapor

Vaporization

13

A liquid will evaporate faster when

Heated

14

Cooling process

Evaporation

15

Measure if the force exerted by a gas above a liquid

Vapor pressure

16

In a system at constant vapor pressure, a dynamic equilibrium exists between the vapor and the liquid . The system is in equilibrium because

The rate of evaporation if the liquid equals the rate of condensation if the vapor.

17

When a liquid is heated to a temperature at which particles throughout the liquid have enough kinetic energy to vaporize,

The liquid begins to boils

18

Normal boiling point of water

100 degrees Celsius

19

Atoms, ions and molecules are packed tightly together in a

Solid

20

Not easy to compress

Solids

21

Do not flow

Solids

22

And the disruptive vibrations of the particles are strong enough to overcome the attractions that hold them in fixed positions

Solid melts

23

The melting point and freezing point of a substance are

The same temperature

24

When the liquid is heated there is an increase in the average kinetic energy of the molecules of a liquid.

The rate of evaporation increases