Molar Mass of Water: 18 g/mol
Molar Mass of Eugenol: 164 g/mol
Boiling point of water: 100 degrees C
Boiling point of eugenol: 254 degrees C
Vapor pressure of Water at 100 degrees C: 760 mmHG
Vapor pressure of Eugenol at 100 degrees C: 4.0 mmHG
HINT: Steam distillation is particularly useful for purifying materials that decompose before reaching their normal boiling point. Steam causes high-boiling components that are immiscible in water to boil at significantly lower temperatures than their normal boiling point. Because the mole fraction of the components only depends on the vapor pressure of the components:
I have attempted this problem numerous times here is what i am doing what am i doing wrong?
Xorg = 4.0/4.0+760 = 0.0053
1-0.0053=0.9947 = XH20
mH2O = 0.9947 * 18 = 17.9046
morg = 0.0053 * 164 = 0.8692
m%org = [0.8692/ (0.8692 + 17.9046)] * 100 = 4.62%
<span>Rounded to 5%</span>
Answer:
Cp = 5.982 R
∴ R: ideal gas constant
Explanation:
expand reversibly and adiabatically:
∴ T1 = 298.15 K
∴ T2 = 248.44 K
∴ P1 = 1522.2 Torr
∴ P2 = 613.85 Torr
⇒ δU = δQ + δW......first law
∴ Q = 0....adiabatically
⇒ δU = CvδT = δW = - PδV
⇒ CvδT = - nRT/V δV
⇒ CvδT/nT = - R δV/V
∴ Cv/n = Cv,m
⇒ Cv,m Ln(T2/T1) = R Ln(V1/V2)
⇒ Cv,m ( - 0.1823 ) = R ( - 0.9082 )
⇒ Cv.m = 4.982 R
∴ Cp,m - Cv,m = R...."perfect" gas
⇒ Cp,m = R + Cv,m
⇒ Cp,m = R + 4.982 R
⇒ Cp,m = 5.982 R
∴ Cp,m = Cp/n
assuming: n = 1 mol fluorocarbon gas
⇒ Cp = 5.982 R
∴ R: ideal gas constant
Your answer is: A. tetrahedral
Hope this helped! :D
Answer:
Fossil record
Explanation:
but first think about it befor you do so it could be wrong im not a computer