For each chemical reaction listed in the first column of the table below, predict the sign (positive or negative) of the reaction entropy ASto decide with the information given, check the "not enough information" button in the last column.Note for advanced students: Assume the temperature remains constant. Assume all gases and solutions are ideal.If it's not possiblerxn H₂SO(l) + H2O (1)reaction-C₂H₁₂ (g) + Br2 (g)Pb(NO3)2(aq) + 2KI (aq)sign of reaction entropyΔεrxn< 0H₂O* (aq) + HSO4(aq)As> 0rxnnot enough information.As< 0rxn→BrCH2CH2Br (1)As> 0rxn-PbI2 (s) + 2KNO3(aq)not enough information.As< 0rxnAs> 0rxn○ not enough information.

Entropy change increases as we go from solid to liquid to gas, and we can predict whether entropy…

Answered: For each chemical reaction listed in…

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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The total entropy of a pure, perfect crystal at Absolute Zero is zero. This represents __. A) the third law of thermodynamics B) the law of conservation of matter C) the law of conservation of energy D) the first law of thermodynamics E) the second law of thermodynamics
For each of the following changes, do you expect the entropy to increase or decrease? (These questions do not require calculations.) a. Ammonia gas and hydrogen chloride gas react to deposit solid ammonium chloride on a surface b. Two aqueous solutions are combined to form a precipitate c. Methanol gas condenses to form liquid methanol d. Butane liquid reacts with oxygen gas to form carbon dioxide gas and gaseous water e. Liquid water freezes to form ice f. Solid lead melts g. A solid solute dissolves in a liquid solvent h. Liquid water boils Possible answers: 1. Entropy should increase (more positive) 2. Entropy should decrease (more negative) 3. The change in entropy cannot be determined from the information given
By examining the following graphs, predict which element- copper or gold-has the higher absolute entropy at a tem- perature of 200 K. 0.3 0.2 Au Cu 0.1 100 200 300 Temperature (K) 7U mol-! K-2)
Which of the givenn processes will cause a decrease in entropy? Note only one is correct. - dissolving NaCl in water? - removing a partition to mix two gases? - freezing water to make ice? - boiling water to make steam? - heating ice to make water?
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A cvg.cengagenow.com Flipgrid | 50ffc. GRLContent Netflix Favorites My Home 3-Day General.. Netflix Content [Review Topics] [References] 2req Use the References to access important values if needed for this question. 2req The free energy change for the following reaction at 25 °C, when [H*] = 7.21×10³ M and [Hg²*]=1.17 M, is 178 kJ: 2req 2H*(7.21×10-3 M) + Hg(1)→ H,(g) + Hg²*(1.17 M) AG= 178 kJ What is the cell potential for the reaction as written under these conditions? s 2req Answer: V ts 2req Would this reaction be spontaneous in the forward or the reverse direction? ots OM) pts 2reg Submit Answer Retry Entire Group 9 more group attempts remaining pts M) pts
If a chemical reaction has a negative reaction entropy, it does not occur spontaneously. Q True Q False Q Search | PSIRITE AIRIT FIF 美美LI 黃 ORIELT O Core 菜单 44 ******** ** ** 24 生事

Rank these systems in order of decreasing entropy. Rank from highest to lowest entropy. To rank items as equivalent, overlap them. • View Available Hint(s) Reset Help 1 mol of 1 mol of carbon disulfide gas at 273 K and 40 L 1/2 mol of 1/2 mol of 1/2 mol of 1 mol of 1 mol of liquid xenon at 100 K xenon gas at 273 K and 40 L xenon gas at 273 K and 20 L xenon gas at 100 K and 20 L xenon gas at 273 K and 20 L nitrogen gas at 273 K and 40 L Greatest entropy Least entropy
O ENTROPY AND FREE ENERGY Using reaction free energy to predict equilibrium composition D 3/5 Consider the following equilibrium: 2NOC1 (g) - 2NO (g)+ Cl, (g) AG" =41. kJ Now suppose a reaction vessel is filled with 2.68 atm of nitrosyl chloride (NOCI) and 3.74 atm of chlorine (Cl,) at 227. °C. Answer the following questions about this system: rise Under these conditions, will the pressure of Cl, tend to rise or fall? fall Is it possible to reverse this tendency by adding NO? In other words, if you said the pressure of Cl, will tend to rise, can that yes be changed to a tendency to fall by adding NO? Similarly, if you said the no pressure of Cl, will tend to fall, can that be changed to a tendency to rise by adding NO? If you said the tendency can be reversed in the second question, calculate the minimum pressure of NO needed to reverse it. | atm Round your answer to 2 significant digits. II
6. Who is the proponent of the Gibbs free energy? A. William Friedrich B. Guglielmo Marconi C. William Gibbs D. Janno Gibbs 7. When AG 2H1 (g) if the entropy values for each substance is as follows: H2(g) = 130.6, 12 (s) = 116.7 and HI (g) = 206.3 A. AS = +165.3 J/K B. AS-165.3 J/K C. AS = -41 J/K D. AS = +453.6 J/K 9. What value of Gibbs free energy can we safely predict that the reaction is spontaneous at all temperatures? A. a negative value C. a positive value at a low temperature B. a positive value D. a positive value at a high temperature 10. What will be the value of the entropy change of the system in the reaction: 6CO₂(g) + 6H₂O(g) → C6H12O6(g) + 602(g) ? C. no change D. cannot be determined A. positive B. negative 11. Ozone (03) in the atmosphere can react with nitric oxide (NO): Os(g) + NO(g) -> NO2(g) + O2(g) Calculate the G for this reaction at 25°C. (AH = -199 kJ/mol, AS = -4.1 J/K-mol) A. -198 kJ/mol B. +198 kJ/mol C.-301.5 kJ/mol D. +301.5 kJ/mol 12. Which of the…
Place the following in order of decreasing standard molar entropy (highest to smallest). Briefly explain your choice on scrap paper. CsI(s) Li3PO4(aq) CsI(aq)
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 Change AS O AS 0 not enough information O AS 0 not enough O information O AS 0 not enough O information Explanation Check O 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use I Privacy Center | O O

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