he change of the entropy for a process of dissolving the polymer in certain solvent is S = -0.07- mol-K' ,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)

he change of the entropy for a process of dissolving the polymer in certain solvent is S = -0.07- mol-K' ,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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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
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The change of the entropy for a process of dissolving the polymer in certain solvent is AS = -0.07- and the change of the enthalpy for the same process is AH = -70; mol kj mol-K' 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)
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 O AS 0 water. not enough information AS 0 14°C. pressure kept constant at 1 atm. not enough information O AS 0 both at 37.°C. flows through the bag into the sucrose solution. not enough O information ?