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 A mixture of hydrogen (H,) gas and O AS = 0 An additional 2.0 L of pure Xe gas is added to the mixture, with the xenon (Xe) gas at 4 atm and O AS > 0 - 14°C. pressure kept constant at 4 atm. not enough information O AS < 0 O AS = 0 A solution made of sodium chloride 50. mL of pure water is added to (NaCl) in water, at 34°C. the solution. O AS > 0 not enough information O AS < 0 The solution is put into a semipermeable bag immersed in the water, and 50. mL of pure water A 0.35 M solution of sucrose in O AS = 0 water, and a beaker of pure water, O AS > 0 both at 37.°C. flows through the bag into the sucrose solution. not enough information

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 A mixture of hydrogen (H,) gas and O AS = 0 An additional 2.0 L of pure Xe gas is added to the mixture, with the xenon (Xe) gas at 4 atm and O AS > 0 - 14°C. pressure kept constant at 4 atm. not enough information O AS < 0 O AS = 0 A solution made of sodium chloride 50. mL of pure water is added to (NaCl) in water, at 34°C. the solution. O AS > 0 not enough information O AS < 0 The solution is put into a semipermeable bag immersed in the water, and 50. mL of pure water A 0.35 M solution of sucrose in O AS = 0 water, and a beaker of pure water, O AS > 0 both at 37.°C. flows through the bag into the sucrose solution. not enough information

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 eac em 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 not enough information AS 0 3°C. not enough information AS 0 both at 37.°C. flows through the bag into the sucrose solution. not enough information O O
c) Provide an example of a chemical or biochemical process that can't be described as enthalpy-driven or entropy-driven and briefly justify your answer. If you can't find a good example, make up a plausible example and briefly explain.
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Mark the correct statements. (Select all that apply.) O [The reaction 2H,O(g) → 2H2(g) + O2(g) is expected to have a positive value of AS°.] O [If a sample of pure ozone changed to oxygen at constant T and P, the entropy of the sample would decrease.] O (For the process H,O(1) HO(s) occurring at 0°C and I atm, the sign of AS is negative.] O The value of AS for the process CHCI3(1) CHC13(g) is negative.] O (The reaction CH4(g)+ 20,(g) → CO>(g) + 2H,O(g) has a negative value of ASur-] sur
Predicting qualitatively how entropy changes with temperature and volume 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. System A few grams of acetone vapor ((CH₂)₂CO). A few moles of helium (He) gas. A few moles of helium (He) gas. Predicting qualit Change The acetone condenses to a liquid at a constant temperature of -12.0 °C. The helium is heated from -19.0 °C to 59.0 °C while the volume is held constant at 10.0 L. The helium is heated from 0.0 °C to 3.0 °C and is also compressed from a volume of 13.0 L to a volume of 10.0 L. tion ΔS O AS 0 O not enough information Ο ΔS 0 not enough information AS 0 not enough information ||
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 dissolved in water. not enough information AS 0 27° C. not enough information O AS 0 gas, both at 3 atm and -20°C. not enough information
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 mixture of carbon dioxide (CO₂) gas and nitrogen (N₂) gas at 2 atm and -5°C. A 0.35 M solution of sucrose in water, and a beaker of pure water, both at 37. ° C. A solution made of potassium chloride (KC1) in water, at 64°C. Change An additional 2.0 L of pure N₂ gas is added to the mixture, with the pressure kept constant at 2 atm. 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. 50. mL of pure water is added to the solution. AS AS 0 not enough information AS 0 not enough information AS…
|Online teaching and le + www. /inkeCivalertaiviy.akwalo ner nkn [Review Topics) reg [References] Use the References to access important values if needed for this question. req Consider the following system at equilibrium where AH° = 198 kJ, and K, = 2.90x102, at 1.15x103 K. M 2S03(g) 2So,(g) + O2(g) reg If the VOLUME of the equilibrium system is suddenly increased at constant temperature: The value of K. A. increases. B. decreases. C. remains the same. M The value of Qc A. is greater than K B. is equal to Ke C. is less than K. The reaction must: A. run in the forward direction to reestablish equilibrium. B. run in the reverse direction to reestablish equilibrium. C. remain the same. It is already at equilibrium. req The number of moles of O2 will: A. increase. B. decrease. C. remain the same. Retry Entire Group 8 more group attempts remaining Submit Answer Previous 75 ort sc de ete
Assume that solutions of ethylbenzene : benzene behave ideally. a) Calculate the entropy of mixing if 40 g of ethylbenzene is mixed into 50 g of benzene.b) At room temperature (298 K), what is ΔmixG for mixing 40 g of ethylbenzene (PhEt) and 50 g of benzene (PhH)?c) Would you notice a temperature change associated with the process in parts a) & b)?d) Instead you mix 40 g of benzyl alcohol (PhMeOH) into 50 g of benzene (PhH). Let’s denote the difference between this process and the process in part b) as:ΔΔG = ΔmixG[ PhMeOH ∶ PhH ] − ΔmixG[ PhEt ∶ PhH ]What do you expect the sign of ΔΔG to be? ( ΔΔG < 0, ΔΔG ≈ 0, or ΔΔG > 0 )Briefly justify your answer.
I took out an ice cube from the -10°C freezer and wanted to add it to the drink, but was immediately called away and forgot to add it to the drink. When I came back, I saw that the ice cube had completely melted into water at a room temperature of 25°C. Assuming that the ice cube is exactly 2 mole, and regard this ice cube as a system, try to calculate the change of enthalpy and entropy (△H,△S) of the system. Let the heat capacity of water be 25 JK-1mol-1, the heat capacity of ice be 15 JK-1mol-1 and the heat of melting of ice △Ĥfus = 6 kJ/mol.
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 mixture of oxygen (O₂) gas and hydrogen (H₂) gas at 3 atm and 7°C. A liter of seawater at 15°C. 300 mL of a solution made from sodium iodide (Nal) dissolved in water. Change An additional 2.0 L of pure H₂ gas is added to the mixture, with the pressure kept constant at 3 atm. 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). 0.5 g of Nal crystallizes out of the solution, without changing the temperature. O O AS 0 O As AS 0 not enough information O not enough. information O AS 0 not enough…
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 not enough information AS 0 not enough information AS 0 and 37°C. pressure kept constant at 1 atm. not enough information O O