unit 2- gases

Question 1

what are the 4 variables w gases

Answer 1

pressure
temperature
volume
moles

Question 2

ideal gas

Answer 2

a gas that obeys all the gas laws perfectly under all conditions; a hypothetical gas w/ molecules of negilible size and no intermolecular forces between the gases

Question 3

real gas

Answer 3

an actual gas that condenses when cooled and deviated from the gas laws under certain conditions

Question 4

4 parts or particle theory or matter

Answer 4

1. everything is made up to particles
2. there are spaces between particles
3. always moving/ vibrating
4. there are attractive dudes between particles

Question 5

what is the kinetic molecular theory

Answer 5

atoms,ions, or molecules of a substance are in continuous motion, colliding w eachother and walls of container; pressure

Question 6

define kinetic

Answer 6

energy of motion

Question 7

define potential

Answer 7

stored energy

Question 8

macroscopic (observable) proper of gas

Answer 8

are compressable
expand as temp increases; shrink when it decreases 
have low viscosity (resistance to flow)
have very low densities
are miscible

Question 9

define viscosity

Answer 9

resistance to flow

Question 10

define atmospheric pressure

Answer 10

the force/ unit area exerted by air on all objects; measured in kilopascals (kpa)

Question 11

STP

Answer 11

101.325 kpa at 0*C

Question 12

SATP

Answer 12

100 kpa at 25*C

Question 13

what does boyles law compare

Answer 13

pressure and volume

Question 14

what are the constants in boules law

Answer 14

temperature and moles

Question 15

what time of relationship is boyles law

Answer 15

inverse
(⬆️pressure ⬇️volume)
(⬇️pressure ⬆️volume)

Question 16

boyles law formula

Answer 16

p1v1=p2v2

Question 17

what does charles law demos compare

Answer 17

temperate and volume

Question 18

what are the constants in charles law demos

Answer 18

pressure and moles

Question 19

what type of relationship is charles law demos

Answer 19

proportional/ direct

Question 20

what is charles law demos formula

Answer 20

v1t1/v2t2

Question 21

what is the combined gas law formula

Answer 21

p1v1 p2v2
—— = ———
t1 t2

Question 22

what are the four properties of gases

Answer 22

compressible
pressure
boyles law
charles law

Question 23

what does compressible mean

Answer 23

spaces between particles

Question 24

what does pressure mean

Answer 24

caused by collisions of molecules with w was of the container

Question 25

what does boyles law state

Answer 25

is volume is reduced gas molecules go shorter distance before colliding; more collisions = greater pressure

Question 26

what does charles law state

Answer 26

more kinetic energy, faster moving molecules

Question 27

what was avagadros theory

Answer 27

equal v of gases at the same temp and pressure contain equal number of molecules

Question 28

1 mole equal?

Answer 28

6.02 x 10^23

Question 29

vSTP

Answer 29

22.4 L/mol

Question 30

vSATP

Answer 30

24.8L/mol

Question 31

what is the ideal gas formula

Answer 31

PV=nRT

Question 32

what does R stand for

Answer 32

universal gas constant

Question 33

what does R equal

Answer 33

8.314kPA x L
———————
mol x K