termo Flashcards by Preda Iuliana

Numarul avogadro

6,023x10^23 part/mol

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volum molar

22,4 L

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numar moli

m/masa molara=N/NA=V/Vmolar

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concentratia

n=N/V

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constanta lochmidt

2,7x10^25 molecule/m3

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masa molara amestec

nr moli1x masa molara1+nr moli2 x masa molara2/nr moli1 + nr moli2
sau
(m1+m2) masa molara1 x masa molara2/m1 masamolara2+m2masamolara1

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Nf gaz disociat

bi N(1+f)
tri N(1+f+2f)

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masa molara gaz disociat

masa molara/(1+f)

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viteza termica

rad (3RT/miu)

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8,31

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kelvin in grade

x+273,15

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presiunea

F/S

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presiunea hidrostatica

Ro x g x h

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distanta medie dintre moleculele de apa

rad3 din masa molara/densitate x NA

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Capacitate calorica

Q/delta T

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caldura specifica

1/m x Q/delta T

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caldura molara

1/nr moli x Q/delta T
Cv +L/(v x deltaT)

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robert mayer

Cp=Cv+R
cp=cv+R/masa molara

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teoria cinetico moleculara

p=2/3 x n x(m0 x vt^2)/2

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energia cinetica medie

m0 x vt^2/2
i/2 x KB xT

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ecuatia termica de stare

pv=vRT

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constanta boltzman

1,38 x 10^-23 j/k

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ecuatia calorica de stare

U=i/2 vRT

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legea izocorei

P/T =ct

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legea charles

p-p0/p0=coeficient x t celsius

coeficientul termic

1/T0 1/273,15 grad^-1

legea izobarei

V/T=ct

legea gay lussac

v-v0/v0= coef x t celsius

legea izotermei

p x v=ct

presiune finala 2 recipiente interconectate

pf=p1v1+p2v2/v1+v2

principiul 1 al termodinamicii

deltaU=Q-L

i/2R

i+2/2 R

L izobara

p x deltaV miu x R x deltaT

caldura in izobara

miu x Cp x deltaT

ln 1/b

-lnb

Izoterma Q=L=

vRTlnV2/V1 vRTlnp1/p2

coeficient adiabatic

Cp/Cv i+2/i

formule adiabata/politropa

pv^coef=ct TV^coef-1=ct Tp^1-coef/coef=ct

L adiabata

-deltaU -vCv x deltaT pivi-pfvf/coef-1

cv cu coeficient adiabatic

R/coef-1

cp cu coeficient adiabatic

coef x R/coef-1

ecuatia termica de stare cu densitate

p/ro=RT/miu

indice politropic

n=Cmol-Cp/Cmol-Cv

caldura molara politropa

Cv+Cp/2 Cv+L/miu x deltaT

lucru mecanic util

Qp+Qc

randament

L/Qp

eficienta

Qc/Lp

randament carnot

tc-tr/tc 1-tr/tc

entropie

Q/deltaT

caldura latenta schimbare stare de agregare

m x lamda

caldura fara schimbarea starii de agregare

m x c x deltaT

presiunea totala a unui amestec de gaze

presiune partiala gaz1+pp gaz2 (vapa+vaer) x RT/V

viteza de evaporare

K x S(ps-pef)/H

ecuatia calorimetrica

|Qc|=Qp

puterea calorica

Q/m

temperatura de echilibru fara schimbarea starii de agregare

m1t1+m2t2/m1+m2

unitatea atomica de masa

1,66 x 10^-27 1/12 x mC12

arie triunghi

b x h/2

arie cerc

piR^2

arie trapez

(b+B) x h/2

Variația energiei interne în orice transformare

vCv x deltaT

caldura molara adiabata

deltaU izoterma

U izoterma

lamda de gheata

80ca

c gheata

c apa/2