unit 9 chem

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29 Terms

1
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Most of the volume occupied by gas

is empty space

2
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Gases are in

constant random motion

3
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Collisions between gas particles with 1 another/container are

elastic collisions

4
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Gas particles have

no forces of attraction inbetween

5
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Gas’s kinetic energy is

dependent on the gas temperature

6
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Temperature increase =

Increase of kinetic energy

7
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Weakest

LDF

8
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Medium

D-D

9
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Strongest

H-Bond

10
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Q

heat energy absorb/released, (J)oules

11
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m

substance mass, Kg

12
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c

specific heat, J/g*c

13
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ΔT

Change in temp, Celsius/Kelvin

14
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formula

Q=mcΔT

15
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solid→liquid

melting/endo

16
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solid → gas

sublimation, endo

17
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liquid → solid

freezing, exo

18
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liquid → gas

vaporization, endo

19
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gas → solid

deposition, exo

20
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gas → liquid

condensation, exo

21
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polar molecule w H atom bonded to

F, O, N (H-Bond)

22
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polar molecule negative charged end

polar molecule positive charged end (D-D)

23
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larger molecules have stronger

LDFs, & is present for all

24
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low pressure/bp/imf

high vapor pressure

25
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high pressure/bp/imf

low vapor pressure

26
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critical point

temperature/pressure pt = liquid/gas merge

27
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triple point

solid liquid gas in equilibirum

28
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0*C

273.15 K

29
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1 atm

760 mmHg