Gases

Question 1

Relationship of gas particles

Answer 1

space between particles is greater than the size of the particles themselves

Question 2

What is the gas particles motion

Answer 2

translational kinetic energy (a straight line)

Question 3

as the temperature increases

Answer 3

the gas gains more kinetic energy

Question 3

property of their particle collision

Answer 3

elastic (no energy is lost)

Question 3

what do we assume in a gas

Answer 3

they behave ideally, where the particles have no IMF with one-another, and the mass and size of the gas particles are negligible

Question 3

compressibility

Answer 3

highly compressible
- a gas can fit into various sizes of containers

Question 4

EMPERICIAL PROPERTIES

Answer 4

properties that are measurable using scientific instruments

Question 5

THEORETICAL PROPERTIES

Answer 5

assumptions as to the behaviour of gas on a particles level based on its empirical properties

Question 6

what are the empirical properties of gas

Answer 6

• VOLUME (V)
• PRESSURE (P)
• TEMPERATURE (T)
• AMOUNT (n)

Question 7

VOLUME (V)

Answer 7

3D space that contains gas
- L or mL

Question 8

IL = ? ml

Answer 8

1000

Question 9

PRESSURE (P)

Answer 9

when gas particles collide with the walls of the container, the frequency of the collisions and the speed of the collisions produces a measurable force
- kPa, Pa

Question 10

1 kPa = ? Pa

Answer 10

1000 Pa

Question 11

BAROMETER

Answer 11

instrument used to measure presssure

Question 12

? atm = ? kPa = ? mmHg = ? torr

Answer 12

1 atm = 101.325 kPa = 760 mmHg = 760 torr

Question 13

TEMPERATURE (T)

Answer 13

measure of the average kinetic energy of the particles of a substance
- celsius or kelvin

Question 14

ABSOLUTE ZERO

Answer 14

extrapolated theoretical lowest temperature possible for any substance. No molecular movement
0 K = -273.15 C

Question 15

C = ? K

Answer 15

K: C + 273
C: K - 273

Question 16

AMOUNT (n)

Answer 16

of particles present in the gas sample
- mol

Question 17

GAY-LUSSAC’S LAW

Answer 17

temperature and pressure of a gas are directly proportional provided that volume and chemical amount are kept constant

Question 18

BOYLE’S LAW

Answer 18

pressure of a gas varies indirectly with its volume at constant temperature and chemical amount

Question 19

what will happen to the pressure if V dec.

Answer 19

pressure with inc. proportionately

Question 20

what will happen to the pressure if V inc.

Answer 20

pressure with dec. proportionately

Question 21

what will be shown on the graph for the pressure volume relationship

Answer 21

inverse curve

Question 22

as V approaches 0, what happens to P

Answer 22

becomes infinitely high

Question 23

as P approaches 0, V become ?

Answer 23

infinitely high

Question 24

why does V dec. and pressure inc.

Answer 24

space between the particles dec., inc. collisions more frequently, and resulting in high pressure

Question 25

formula for BOYLE’S LAW

Answer 25

P1V1V = P2V2

Question 26

CHARLES LAW

Answer 26

temperature (in K) and volume of a gas are directly proportional, at constant pressure and chemical amount

Question 27

graph for temperature and volume

Answer 27

linear (direct relationship)

Question 28

why does the graph SLOWLY inc.

Answer 28

different IMF’s, high IMF = slow reaction

Question 29

intial properties in charles law

Answer 29

high kinetic energy, low IMF

Question 30

final properties in charles alw

Answer 30

low kinetic energy, IMFs’ can develop, particles come closer together (dec. V)

Question 31

formula for CHARLES LAW

Answer 31

V1/T1 = V2/T2

Question 32

STP

Answer 32

standard temperature and pressure
- 0 C and 101.325 kPa

Question 33

SATP

Answer 33

standard ambient temperatures and pressure
- 25 C and 100 kPa

Question 34

formula for GAY-LUSSACS

Answer 34

P1/T1 = P2/T2

Question 35

overall formula for boyles, charles, and gay-lussacs law

Answer 35

P1V1/T1 = P2V2/T2