unit B- topic one

Question 1

gas

Answer 1

substance that fills and assumes the shape of its container
diffuses rapidly
mixes readily with other gases

Question 2

highly reactive gases

Answer 2

flourine, chlorine and oxygen

Question 3

not very reactive gases

Answer 3

nitrogen and noble gases

Question 4

space vaccum

Answer 4

has no pressure

Question 5

physical properties

Answer 5

gases always fill their containers they have neither shape or volume

Question 6

increase in pressure =

Answer 6

decrease in volume

Question 7

increase in volume =

Answer 7

decrease in pressure

Question 8

how do particles in gas move?

Answer 8

move/diffuse spontaneously, through any space

-in straight lines until they hit something (windows saver)

Question 9

tempature affects

Answer 9

volume or pressure

Question 10

tempature also means

Answer 10

how fast the particles are going to be moving

Question 11

boyels law

Answer 11

volume decreased, pressure increases AS LONG as theres a constant temperature

Question 12

pressure

Answer 12

force per unit area

Question 13

smaller area=

Answer 13

greater force (stabbed with a stick)

Question 14

larger area=

Answer 14

less force (pushed by hands)

Question 15

kilopascal (kPa)

Answer 15

represents a force of 1000N on an area of 1m^2

Question 16

mmHg

Answer 16

based on the height mercury rose

-original units for pressure) very inconsistant

Question 17

general pressure at sea level is…

Answer 17

1 atm

Question 18

recite the formulas for all units of pressure

Answer 18

1atm = 760mmHg = 101.325kPa (760 torr= 14.70psi)

Question 19

kinetic molecular theory

Answer 19

everything is in motion

Question 20

KMT- solids

Answer 20

vibrate around fixed points

Question 21

KMT- liquids

Answer 21

move around moving points,

Question 22

KMT- gases

Answer 22

move freely in straight lines, lots of space

Question 23

atmospheric pressure

Answer 23

pressure exterted by air

Question 24

stp

Answer 24

standard tempature and pressure

0°C and 1 atm or 101.325 kPa

Question 25

SATP

Answer 25

standard ambient tempature and pressure

25°C and 100 kPa

Question 26

steps for solving to find p or v

Answer 26

1. P1V1 = P2V2
2. Find conversions if needed (set up two tables, cross multiply answer of first, and solve for X)
3. P1V1 answer / known variable in P2V2

Question 27

kinetic energy

Answer 27

the energy of motion

Question 28

charles law

Answer 28

the greater the temperature the more kinetic energy volume increases with the temperature
-pressure is constant

Question 29

explain “temperature inc = volume inc”

Answer 29

temperature inc means that particles are speeding up and then take up more space, as they move faster and push apart (volume inc)

Question 30

absolute zero

Answer 30

where particles have no motion

-273.15°C (zero Kelvin)

Question 31

kelvin

Answer 31

each degree is the same size as °C

Question 32

c -> k

Answer 32

add 273

Question 33

k -> c

Answer 33

take away 273

Question 34

charles law equation

Answer 34

v1/t1 = v2/t2

Question 35

amontons law

Answer 35

voume of a gas is constant, increase of temperature means increase of pressure

Question 36

amontons law equation

Answer 36

p1/t1=p2/t2

Question 37

keep any units for

Answer 37

pressure or volume

Question 38

change units on

Answer 38

temperature (k)