Phychem Formulas Flashcards by Baby Arellano

Q

Ideal gas

A

PV = nRT

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Q

density (ideal gas)

A

PMW / RT

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Q

Charles Law

A

V/T = R/P

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Q

Boyles Law

A

PV = RT

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Q

Gay-Lussacs

A

P/T = R/V

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Q

van der waals

A

(P + an^2/v^2) (V - nb) = nRT

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Q

Mean Free Path

A

l = (sqrt2 pi o^2 n*) ^-1

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Q

ave collosion per unit time

A

n = (sqrt2 pi o^2 n* v)
or
v / l

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Q

ave collision per unti vol-time

A

z = (n • n*) / 2

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Q

most probable speed

A

sqrt (2RT/MW)

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Q

Mean Speed

A

sqrt (8RT / pi•MW)

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Q

Root Mean Square Speed

A

sqrt (3RT / MW)

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Q

Falling Sphere

A

v = [g D^2 (density of particle - density fluid)] / 18 myu

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Q

Ostwald

A

myu = (pi•P•r^4•t) / (8•L•V)

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Q

Standard Gibbs

A

delta G = -RT ln (Kp)

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Q

rel of Kc and Kp

A

Kp = Kc (RT) ^(delta n)

Q

Faraday

A

Q = It = nF

Q

Nernst

A

E = E - (RT/nF) ln K

Q

Clausius Clapeyron

A

ln (P2/P1) = delta H/R (1/T1 - 1/T2)

Q

Raoults Law

A

Pa = Pao•xa

Q

Henrys Law

A

Pa = K•xa

Q

Latent heat

A

change in phase, same temp

Q

change in phase, same temp

A

latent heat

Q

sensible heat

A

no change in phase, change in temp

Q

same phase, change in temp

A

sensible heat

Q

1 cal

A

4.184 J

Q

Cp ice

A

2.09 J/gc

0.50 cal/gc

Q

Cp water

A

4.18 J/gc

1 cal/gc

Q

Cp gas

A

2 J/gc

0.48 cal/gc

Q

Heat of fusion water

A

334 J/g

80 cal/g

Q

Heat of vap

A

2260 J/g

540 cal/g