change of the entropy for a process of dissolving the polymer in certain solvent is = -0.07- mol-K' AS = - and the change of the enthalpy for the same process is AH = -70 mol kJ a) Do you expect this polymer - solvent system to show LCST behavior or not? Explain briefly (1-2 sentences) b) Calculate the temperature of LCST point for this system c) Would you expect any feasible application of LCST behavior of this system? Explain briefly (1-2 sentences)

change of the entropy for a process of dissolving the polymer in certain solvent is = -0.07- mol-K' AS = - and the change of the enthalpy for the same process is AH = -70 mol kJ a) Do you expect this polymer - solvent system to show LCST behavior or not? Explain briefly (1-2 sentences) b) Calculate the temperature of LCST point for this system c) Would you expect any feasible application of LCST behavior of this system? Explain briefly (1-2 sentences)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Predicting qualitatively how entropy changes with mixing and separation For each system listed in the first column of the table below, decide (if possible) whether the change described in the second column will increase the entropy S of the system, decrease S, or leave S unchanged. If you don't have enough information to decide, check the "not enough information" button in the last column. Note for advanced students: you may assume ideal gas and ideal solution behaviour. System Change AS AS 0 1.0 g of ammonium chloride (NH4Cl) and 2.0 L of pure water at 36 °C. not enough information AS O not enough information AS O 36°C. not enough information ? 18 Ar 日。
For each system listed in the first column of the table below, decide (if possible) whether the change described in the second column will increase the entropy S of the system, decrease S, or leave S unchanged. If you don't have enough information to decide, check the "not enough information" button in the last column. Note for advanced students: you may assume ideal gas and ideal solution behaviour. System A liter of seawater at 15°C. A 0.35 M solution of sucrose in water, and a beaker of pure water, both at 37. °C. 20. L of pure oxygen (0₂) gas and 20.0 L of pure carbon dioxide (CO₂) gas, both at 5 atm and 22°C. Change The seawater is passed through a reverse-osmosis filter, which separates it into 750. mL of pure water and 250. mL of brine (very salty water). The solution is put into a semipermeable bag immersed in the water, and 50. mL of pure water flows through the bag into the sucrose solution. The gases are mixed, with the pressure kept constant at 5 atm. X AS AS 0 not enough…
12:27 Cl₂ is a stable diatomic molecule. It can be decomposed to form two Cl atoms as shown below. Cl₂(g) → 2 Cl(g) Question 12 of 15 A) AS is (-) Predict the change in entropy (AS) of this reaction. B) AS is (+) C) AS = 0 Submit D) AS cannot be predicted for this reaction. Tap here or pull up for additional resources
O Microsoft OneDrive eaching and lea x A OWLV2 | Online teaching and lea x + enow.com/ilrn/takeAssignment/takeCovalentActivity.do?locator=assignment-take Use the References to access important values if needed for this question. Consider the following system at equilibrium where AH° = 87.9 kJ/mol, and K. = 1.20×102 , at 500 K. PCI3 (g) PCl3 (g) + C2 (g) When 0.25 moles of PCI5 (g) are added to the equilibrium system at constant temperature: The value of Kl The value of Q. The reaction must O run in the forward direction to restablish equilibrium. O run in the reverse direction to restablish equilibrium. Oremain the same. It is already at equilibrium. The concentration of PCI3 will Submit Answer Retry Entire Group 9 more group attempts remaining Cup
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Try Again Your answer is incorrect. For each system listed in the first column of the table below, decide (if possible) whether the change described in the second column will increase the entropy S of the system, decrease S, or leave S unchanged. If you don't have enough information to decide, check the "not enough information" button in the last column. Note for advanced students: you may assume ideal gas and ideal solution behaviour. System 1.0 g of potassium chloride (KC1) and 2.0 L of pure water at 14 °C. A mixture of argon (Ar) gas and nitrogen (N₂) gas at 1 atm and - 18°C. A solution made of potassium chloride (KCl) in water, at 14°C. Change The potassium chloride is dissolved in the water. An additional 2.0 L of pure N₂ gas is added to the mixture, with the pressure kept constant at 1 atm. 50. mL of pure water is added to the solution. AS AS 0 not enough information AS 0 not enough information AS 0 not enough information
-Lean X bs Free E... s.com/alekscgi/x/lsl.exe/10_u-IgNslkr7j8P3jH-IvTqeviKFP6W0cqJcWJdIACROQwyw24GWHInlg8hjQikSzrCwgeRV-1EfJIXE3... 18.5 Gibbs Free E... Reading Schedule 19.6 Reduction Po.... Ya SOLUTION: The le... Math 1 = 21.058 2 A student made measurements on some electrochemical cells and calculated three quantities: • The standard reaction free energy AG. • The equilibrium constant K at 25.0 °C. • The cell potential under standard conditions Eº. Oxidizing and Reducing Agents X O ELECTROCHEMISTRY Recognizing consistency among equilibrium constant, free... cell A 5.3 Enthalpies of... His results are listed below. Unfortunately, the student may have made some mistakes. Examine his results carefully and tick the box next to the incorrect quantity in each row, if any. Note: If there is a mistake in a row, only one of the three quantities listed is wrong. Also, you may assume the number of significant digits in each quantity is correct. Also note: for each cell, the number n of…
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-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IvTqeviKFP6W0cqJcWJdIACROQwyw24GWHinnFt 5.3 Enthalpies of... 18.5 Gibbs Free E... 18.3 Gibbs Free E... 21,108 M O ELECTROCHEMISTRY Ranking the strength of oxidizing and reducing agents using... species Use the information in the ALEKS Data tab to sort the following chemical species by reducing power. Ag(s) Ca'(s) Br (aq) Na(s) Explanation X Check reducing power DEC 5 choose one choose one choose one ✓ choose one S Reading Schedule tv CP 19.6 Reduction Ⓒ2022 McGraw H (A) MacBook Pro
174 Solublity and... 18.3 = Slide 2 of 105 esc 18.3 Gibbs Free Gibbs Free E... O KINETICS AND EQUILIBRIUM Calculating the solubility of an ionic compound when a commo... Calculate the solubility at 25 °C of AgCl in pure water and in a 0.0110M AgNO3 solution. You'll find K, data in the ALEKS Data tab. Round both of your answers to 2 significant digits. solubility in pure water: Explanation solubility in 0.0110 M AgNO, solution: 7 E.5.3 Enthalples of.... Notes e Q A 2 Z Check W S 3 0- g 20 Comments P: + 18.5 Gibbs Free E... Reading Schedule 19.6 Reduction Po... Pa SOLUTION TH F D 4 > R F 00 0° 0. 0x0 5 1 X V 79% 6 G 53 $ Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center 0.0 Copyright 2022 | CUNY IT Help I'm Y B 7 H U N 8 Is J M 9 ( 0 ge 0 O P
5. What is the slope of the solid-liquid coexistence curve given 4Sfusion=50 J K-¹ mol-¹ and AVuzion=8.0 x 105 m³ mol-¹ (a) 6.3 x 106 Pa K-¹ (b) 3.1 x 106 Pa K-¹ (c) 6.3 x 10° Pa K-¹ (d) 1.2 x 10³ Pa K-¹