Ethylene glycol, HOCH2CH2OH, is a common automobile antifreeze. It is water-soluble andfairly nonvolatile (boiling point = 197°C). Calculate the freezing point of a solution containing652 g of this substance in 3676 g of water. (Cryoscopic constant of water = 1.86 °C/molal;Atomic Weight: C = 12.01 g/mol; H = 1.008 g/mol; O = 16.00 g/mol). Express your answer in twodecimal places. Do not put the units.

Given: The cryoscopic constant of water is given as km = 1.86oC/molal or oC/(mol/kg) The molar mass…

Answered: Ethylene glycol, HOCH2CH2OH, is a…

Introduction to Chemical Engineering Thermodynamics

8th Edition

ISBN:9781259696527

Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart

Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart

Chapter1: Introduction

Section: Chapter Questions

Problem 1.1P

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Tert-butyl chloride has a normal boiling temperature of 350 K. The vapor presuure at 298K is 101 torr. Calculate the enthalpy of vaporization for this substance in kļ/kg.
Can you explain how to solve this and with an illustration
4. The melting points of the oxides of the third-period elements are given in parentheses: Na20 (1275°C), MgO (2800°C), Al2O3 (2045°C), SiO2 (1610°C), P4O10 (580°C), SO3 (16.8°C), C207 (291.5°C). Classify these solids in terms of crystal types. What is the coordination number of each sphere in (a) a simple cubic cell, (b) a body-centered cubic cell, and (c) a face-centered cubic cell? Assume the spheres are all the same. Calculate the number of spheres that would be found within a simple cubic, a body-centered cubic, and a face-centered cubic cell. Assume that the spheres are the same. Metallic iron crystallizes in a cubic lattice. The unit cell edge length is 287 pm. The density of iron is 7.87 g/cm³. How many iron atoms are within a unit cell? Europium crystallizes in a body-centered cubic lattice (the Eu atoms occupy only the lattice points). The density of Eu is 5.26 g/cm?. Calculate the unit cell edge length in pm. 5. 6.
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A liquid-vapour mixture whose composition is 60 mole % of benzene is contained within a vessel at 60C. What fraction of mass is in the liquid phase?
here asdasd how
1a
A typical sample of air contains 21.0% O2 by volume. For any gas, the volume the gas occupies is directly proportional to the number of moles of gas at a given temperature and pressure. How many moles of oxygen are present in 18.75 moles of air?
container is divided into two equal parts. in one component, we have 2 mol N2 and in the other compartment, we also have 2 mol H2. When the partition is removed the gases are assumed to behave ideally ( temperature = 27 oC and Pressure = 1 atm) and mix. Calculate the Gibbs function of mixing.
with the paragraph below, use the words "increase", "decrease", or "not change" to fill in the blanks. an increase in temperature will _________ the equilibrium constant of an endothermic reaction. Adding a solute to a solvent will ______ the solvent's boiling point. If we increase the external pressure on liquid water, it's freezing point will _____ and its boiling point will ________.
A sample of 1.205 g of compound yielded 0.698 g H20 and 2.479 g CO2 as a result of combustion analysis. 2,216 g of compound The normal boiling point of the solution obtained by dissolving in 48.68 g H20 is 100.068 °C. Coniferin molecule Find the formula [KK for water = 0.512 °Cm-1]
Calculate and report the density, in kg m-³, of air at 1.00 atm and 10.0 °C. Take the composition of air to be 79 mol% nitrogen and 21.0 mol% oxygen. The molecular weights of nitrogen and oxygen may be taken as 28.0 g mol-¹ and 32.0 g mol-¹ respectively. State any assumptions.

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