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: McGraw-Hill Education
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Transcribed Image Text:) An industrial chemist is studying small organic compounds for their potential use as an
automobile antifreeze. When 0.243 g of a compound is dissolved in 25.0 mL of water, the
freezing point of the solution is -0.201 °C. Calculate the molar mass of the compound. Take
the density of water to be 1.00 g/mL at the temperature of the experiment.
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- C Search Textbook Solutions | Ch evo/index.html?deploymentld%3D55750828934189288909969212&elSBN=9781305657571&snapshotld... INDTAP Q Search this cou Use the References to access important values if needed for this question. You boil a small quantity of water inside a 5.0-L metal can. When the can is filled with water vapor (and all air has been expelled), you quickly seal the can with a screw-on cap and remove it from the source of heat. It cools to 70 °C, and some of the vapor condenses to liquid water. Refer to the figure below to determine the pressure inside the can. P = atm Dimethyl ether Diethyl ether Ethylene Water 1.2 1.0 0.8 0.6 por pressure (atm)arrow_forward2. Carbon nanotubes (CNT) are among the most versatile building blocks in nanotechnology. These unique pure carbon materials resemble rolled-up sheets of graphite with diameters of several nanometers and lengths up to several micrometers. They are stronger than steel, have higher thermal conductivities than most known materials, and have electrical conductivities like that of copper but with higher current- carrying capacity. Molecular transistors and biosensors are among their many applications. While most carbon nanotube research has been based on laboratory-scale synthesis, commercial applications involve large industrial-scale processes. In one such process, carbon monoxide saturated with an organo-metallic compound (iron penta- carbonyl) is decomposed at high temperature and pressure to form CNT, amorphous carbon, and CO2. Each "molecule" of CNT contains roughly 3000 carbon atoms. The reactions by which such molecules are formed are: Decomposition of Fe(CO)s to form iron, which…arrow_forwardA 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?arrow_forward
- 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.arrow_forward1. Dry ice is placed in the bottom of a capillary tube 6.2 cm long. Air is blown across the top of the tube. Calculate the ratio of the total flux to the diffusion flux halfway up the capillary for the following conditions: (a) A temperature of – 124°C, where the vapor pressure is 5 mm Hg. Answer: 1.00. (b) A temperature of – 86°C, where the vapor pressure is 400 mm Hg. Answer: 1.45.arrow_forwardHow many kilojoules are required to change the temperature of 10.0 g of water from 18.3 oC to 49.6 oCarrow_forward
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