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Chem 106 > Chapter 10 > Flashcards

Chapter 10 Flashcards

1
Q

Kinetic Molecular Theory

A

explains the behavior of gases based on the motion of their particles

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2
Q

what is a gases average kinetic energy proportional to?

A

absolute temp

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3
Q

what kind of collisions do gases engage in?

A

elastic

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4
Q

what changes a gases volume?

A

temp and pressure

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5
Q

effusion

A

gas leaking through small holes from a high pressure are to a low pressure area

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6
Q

u

A

speed of molecules

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7
Q

n

A

number of moles

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8
Q

smaller mass=

A

higher speed

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9
Q

atmospheric pressure

A

pressure exerted due to gravity acting on air above Earth’s surface

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10
Q

1 atm=

A

101.325 Pa

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11
Q

1atm=

A

1.01325 bars

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12
Q

1 atm==

A

760 mmHg

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13
Q

absolute temperature

A

temp expressed on the Kelvin scale whose zero value is absolute zero

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14
Q

ideal gas

A

gas whose behavior is predicted by the linear relations defined by the combined gas law

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15
Q

STP Temp

A

273K

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16
Q

STP Pressure

A

1 atm

17
Q

at STP 1mol of gas has a V of…

A

22.4L

18
Q

molar volume=

A

v/n

19
Q

density of gas

A

MP/RT

20
Q

low molar mass means…

A

low density

21
Q

what remains constant according to Boyle’s law?

A

Temp and number of moles

22
Q

Boyle’s law equation

A

PV=PV

23
Q

what remains constant according to Charles Law?

A

Pressure and number of moles

24
Q

Charles Law equation

A

V/T=V/T

25
Q

what remains constant according to Amontom’s Law?

A

number of moles and volume

26
Q

Amontom’s law equation

A

P/T=P/T

27
Q

what is constant according to the combined gas law?

A

number of moles

28
Q

Combined Gas Law equation

A

PV/T=PV/T

29
Q

ideal gas equation

A

PV=nRT

30
Q

R

A

0.08206

31
Q

partial pressure

A

pressure of individual gases in a mixture

32
Q

what finds partial pressure?

A

P1=xPtotal

33
Q

Steps to Find Partial Pressure

A
  1. Convert it to moles
  2. Add everything together
  3. Divide moles by total
  4. Make sure everything equals 1
34
Q

what is the solubility of gases dependent on?

A

Temp and Pressure

35
Q

As solubility increases

A

pressure increases

36
Q

as solubility decreases

A

temp increases

Chem 106 (13 decks)

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