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Chemistry > Chapter 5- STATES OF MATTER > Flashcards

Chapter 5- STATES OF MATTER Flashcards

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0
Q

Boyles Law

A

P1V1 = P2V2

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1
Q

Ideal Gas

A

PV=nRT

 P is pressure in atm
V is volume in liters
N is number of moles
T is temperature in kelvin 
R is rate (given on test)
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2
Q

Kinetic Molecular Theory of Gases

A

Gases are made up of particles that are in constant random motion
Average kinetic energy of the molecules increases or decreases in proportion to absolute temperature

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3
Q

Charles Law

A

V1/T1 = V2/T2

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4
Q

Combined Gas Law

A

(P1V1)/T1 = (P2V2)/T2

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5
Q

Avagadros Law

A

V1/n1 = V2/n2

Where V is volume and n is number of moles

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6
Q

Standard Temperature and Pressure STP

A

D= mass/volume

Molecular volume of gas is 22.4L
Temperature is 273 Kelvins
Pressure is 1.00 atm

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7
Q

Dalton’s law of partial pressures

A

States that the tot pressure of the mixture of gases is the sum of the total partial pressure

P= p1 + p2 + p3 +…

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8
Q

1 atm is equal to what?

A

1 atm=

760mmHg
760torr

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9
Q

Compressibility: liquids are yes or no? Explain

A

Liquids are incompressible. The molecules are so close together that the application of pressure does not decrease the volume

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10
Q

Viscosity

A

It is the measure of a liquids resistance to flow. It generally tends to decrease with increasing temperature

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11
Q

Surface Tension

A

ST of a liquid is a measure of the attractive forces exerted among molecules at the surface of a liquid.

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12
Q

Surfactants

A

They can be added to a liquid to decrease surface tension. (Soaps/detergents- reduce waters ST to help water interact better with grease and dirt helping to stain remove)

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13
Q

Evaporation

A

Liquid to gas

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14
Q

Condensation

A

Gas to liquid

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15
Q

Vapor pressure of a liquid

A

Defined as the pressure exerted by the vapor at equilibrium

16
Q

What variables can be measured for real gases?

A

Temp
Pressure
Volume
Quantity (mass)

17
Q

Properties of gases

A 
Easily compressible 
Expands to fill any volume
Low density
Diffuses through one another
Experts pressure on containers 
Behaves ideally at low pressure and high temp
18
Q

What is molar volume

A

The volume occupied by 1 mol of any gas

Chemistry (4 decks)

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