Unit 2

Question 1

What factors affect gas pressure

Answer 1

Gas/number of particles, volume, pressure, temperature

Question 2

What is a mole

Answer 2

6.02x10^23

Question 3

What is the relation of number of particles and volume

Answer 3

Directly related

Question 4

What is the relationship of temperature and volume

Answer 4

Directly related

Question 5

What is the relationship with pressure and volume

Answer 5

Inversely related

Question 6

What is relation of temp and pressure

Answer 6

Directly

Question 7

Boyles law

Answer 7

P1V1=P2V2

Question 8

Charles law

Answer 8

V1/T1=V2/T2

Question 9

Guy-lussacs law

Answer 9

P1/T1=P2/T2

Question 10

Combined gas law

Answer 10

P1V1/T1=P2V2/T2

Question 11

Avogadros law and STP

Answer 11

V1/n1=V2/n2

22.4L/1mole=V2/n2

Question 12

What is standard temp

Answer 12

273K

Question 13

What is standard pressure

Answer 13

1 atm

Question 14

Molar volume

Answer 14

One mile= 22.4L at STP

Question 15

Dalton law of partial pressure

Answer 15

P1+P2+…..Pn=Ptotal

Question 16

Real gases behave like ideal gases except at

Answer 16

Very low temps

Question 17

The gas constant R is equal to .0821 when the pressure is expressed in

Answer 17

ATM

Question 18

As more gas particles are added into a container what happens to the collisions

Answer 18

Increase because they don’t go as far away from one another

Question 19

What is the relation of proportion for the number of Moles of a gas to its volume at STP

Answer 19

Number of moles is directly proportional to its volume

Question 20

Real gases behave like ideal gases expect at —- pressures

Answer 20

Low pressures

Question 21

Ideal gas equation will only give correct values if temperature is expressed in

Answer 21

Kalvin

Question 22

One mole is how many liters

Answer 22

22.4

Question 23

What are different units of pressure

Answer 23

Mm Hg
Atm
Pa
kPa
Torr

Question 24

Elastic collision

Answer 24

Using lose velocity when collide

Question 25

Ideal gas

Answer 25

``` No volume Elastic collision Constant straight line random motion Don't attract or repel AVg Kinetic energy directly related to kale in ```

Question 26

Real gas

Answer 26

Volume | Attract each other

Question 27

Gas behavior is most ideal at

Answer 27

Low pressures High temp Lower attractive force ( non polar)

Question 28

Gases particle motion

Answer 28

Random no attraction

Question 29

Gases have low density

Answer 29

No volume lots of empty space

Question 30

Diffusion

Answer 30

Stays in container but spreads throughout

Question 31

Effusion

Answer 31

Leaves container

Question 32

Pressure formula with surface area

Answer 32

Force/ SA

Question 33

Density formula

Answer 33

D= p(molar mass MM)/RT D=m/v P/RT=N/V or m/v

Question 34

Combined gas law with avogadros law

Answer 34

PV/nT= R

Question 35

Ideal gas law

Answer 35

pV=nRT

Question 36

What causes effusion and deffusion

Answer 36

Just molecules moving and mix

Question 37

What causes diffusion to happen slower or faster (rates)

Answer 37

Mass