Thermal Properties of Matter Flashcards

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1
Q

Ideal Gas Equation

A

pV = nRT

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2
Q

Isothermal Definition

A

Constant Temperature

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3
Q

Van der Waals Equation Changes

A
  • P = P + (an^2)/(V^2)
  • V = V - nb
  • n is number of moles
  • b is the co-volume - volume of 1 molecule
  • a is a constant
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4
Q

Van der Waals Assumption Changes

A
  • Acknowledges gas molecules have volume
  • Acknowledges gas molecules exert attractive forces
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5
Q

Kinetic Ideal Gas Equation

A
  • pV = (1/3)(Nmv^2)
  • p is the pressure
  • V is the volume
  • N is the number of number of molecules
  • m is mass of one molecule
  • v is the rms speed
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6
Q

Kinetic Energy of a gas

A
  • E = (3/2)(kBT)
  • kB is the boltzmann constant
  • T is the temperature
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7
Q

Maxwell Boltzmann Distribution

A
  • Most probable speed
  • Average speed
  • RMS speed
  • Temperature Increases: curve becomes flatter
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8
Q

Molar Heat Capacity Equation (Cp & Cv)

A

C = (1/n)(dQ/dT)

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9
Q

Molar Heat Capacity at Constant Volume for Monatomic (Translation)

A

C = 3R/2

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10
Q

Molar Heat Capacity at Constant Volume for Diatomic (Rotation)

A

C = 5R/2

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11
Q

Molar Heat Capacity at Constant Volume for Diatomic (Vibration)

A

C = 7R/2

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12
Q

Molar Heat Capacity at Constant Volume and Pressure Relation

A
  • Cp = Cv + R
  • γ=Cp/Cv
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