Predict the sign of the entropy change, AS°, for each of the reaction displayed. Drag the appropriate items to their respective bins. • View Available Hint(s) Reset Help Ba2+ (aq) + SO,2 (aq)→BASO4(s) 2KCIO3(s)–→2KC1(s) + 302(g) 2NO2 (g)→N2(g) + 202(g) P.(g) + 502(g)–→P4O10(s) C3H8 (g) + 502(g)→3CO2(g) + 4H2CCHLOH(1)–CH3OH(g) Positive Negative

Predict the sign of the entropy change, AS°, for each of the reaction displayed. Drag the appropriate items to their respective bins. • View Available Hint(s) Reset Help Ba2+ (aq) + SO,2 (aq)→BASO4(s) 2KCIO3(s)–→2KC1(s) + 302(g) 2NO2 (g)→N2(g) + 202(g) P.(g) + 502(g)–→P4O10(s) C3H8 (g) + 502(g)→3CO2(g) + 4H2CCHLOH(1)–CH3OH(g) Positive Negative

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter16: Spontaneity, Entropy, And Free Energy

Section: Chapter Questions

Problem 9ALQ: At 1 atm, liquid water is heated above 100C. For this process, which of the following choices (iiv)...

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85253 mics Exercise 18.36 - Enhanced - with Feedback and Hints Part A Without doing any calculations, determine the sign of ASsys for each of the following chemical reactions. Drag the appropriate items to their respective bins. > View Available Hint(s) Reset Help CH4 (g) + 202(g)→ CO2(g) + 2H20(1) SO3 (g) + H2O(1)→H2SO4(1) 203(g) → 302(g) Mg(s) + Cl2 (g) → MgCl2(s) A Says greater than 0 ASys smaller than 0
[References) This question has multiple parts. Work all the parts to get the most points. a Calculate AH° for the reaction 2K(s) + 2H20(1) → 2KOH(aq) + H2 (g) Substance and State AH° (kJ/mol) K(s) KOH(ag) H2 (9) H20(1) -481 -286 AH° = kJ Submit Submit Answer Try Another Version 2 item attempts remaining
What is the Al for this reaction? PoO's)+2 NH,CI(s)- PbCl(s) + N;H«() + Hz0(1) + H2(g) OA 140.4 kJ 0a-253.2 kJ C-61.2 kJ O0 61.2kJ OL 253.2 kJ OF-140.4 kJ Beset Selection
Consider the following elementary reaction (seen in air pollution) that goes through a a theoretically proposed transition state: NO2 (9) + NO2 (9) – > (0ON – NOO)* – > N204 (9) Molecule Energy in kJ/mol Entropy in J/(mol*K) NO2 -535913 240 (OON-NOO); -535854 400 N204 -107439 304 Use collision theory to estimate the second order rate constant at 25 °C using that the hard sphere molecular cross section is 0.60 nm².
uestion 17 W Product Reactant Product Reactant Time Time Reaction 1 Reaction 2 e graphs above represent the changes in concentration over time for the reactant and product of two separate reactions at 25 C. Based on these graphs, which of the following best supports the claim that action 1 is thermodynamically favorable but reaction 2 is not? [Product] Product) [Reactant >> 1 and AG"Trn 0. At equilibrium, for reaction 1 [Reactant A Product] [Reactant > 1 and AG" ran > 0 but for reaction 2 0. Reactant] Product) At equilibrium, for reaction 1 = 1 and AG" Reactant] [Product] Reactant) = 0 and AGTzn > 1 and AG" Tzn < 0 but for reaction 2 D At equilibrium, for reaction 1 Q Search or enter website name * Concentration Concentration
eq M 2req # Assignmen.... E D [Review Topics] [References] Scoring: Your score will be based on the number of correct matches minus the number of incorrect matches. There is no penalty for missing matches. Use the References to access important values if needed for this question. Predict whether AS for each reaction would be greater than zero, less than zero, or too close to zero to decide. 20 C H₂(g) + F2 (g) → 2HF(g) PC15 (9)→ PC13 (g) + Cl2 (9) CO₂ (g) + H₂(g) → CO(g) + H₂O(g) $ CO(g) + 3H₂(g) → CH4 (9) + H₂O(g) 000 000 R 2H₂O2(1)→ 2H₂O(l) + O2(g) F V Show Hint % 5 T G B Y H Cengage Learning Cengage Technical Support & 7 N U Clear All J AS 0 AS < 0 too close to decide 00 * 8 M ( K L P Previous Next Email Instructor Save and Exit + 11 ?
6. Calculate the standard free energy changes and the equilibrium constant of the given reaction at 25 °C and determine its spontaneity. Use appendix 3 for the thermodynamic data H₂(g) + I2(g) → 2HI(g)
Ep 0 -2000- -4000 C+C+H+H+H+H +3241 kJ C₂H₂O Free Atoms Reactants Type your numeric answer and submit +1494 kJ 30, Reaction Path Heat of Reaction Homework Unanswered Due Feb 23rd, 11:30 AM 0+0+0+0+0 -3196 kJ 2 CO₂ -2784 kJ 3 H₂O Products Ethanol, C₂H6O, is now used as an alternative or as a supplementary fuel in many vehicles. An approximate energy diagram for the combustion of one mole of ethanol in the presence of O₂ is shown below: 2 Use the information provided in the diagram to estimate the heat of reaction in kJ per mole of ethanol burned. ★ |||
Scoring: Your score will be based on the number of correct matches minus the number of incorrect matches. There is no penalty for missing matches. Use the References to access important values if needed for this question. Predict whether AS for each reaction would be greater than zero, less than zero, or too close to zero to decide. Clear All N2(g) + O2(g)- →2NO(g) COCI»(g)CO(g) + AS >0 CO2(g) + H2(g)→CO(g) + H20(g) AS <0 2H2S(g) + 302(g) 2H,0(g) + 2S02(g) too close to decide 2H;0()2H2(g) + O2(g)
دا ← | E 16- ارد و G O CHEMICAL REACTIONS Predicting the products of dissolution FE FAX | | = 1 2 1 0 1 | 2 | 3 | 2 | 2 | H 2 H I H | H H I H I * * * * e https://wwww-awwu.alelks.com/alekscgi/x/isl.exe/1o_u-lgNslkr7j8P3jH-IBMBkpcnaFuOF7Vj... A 53°F Cloudy The names and chemical formulae of some chemical compounds are written in the first two columns of the table below. Each compound is soluble in water. Imagine that a few tenths of a mole of each compound is dissolved in a liter of water. Then, write down in the third column of the table the chemical formula of the major chemical species that will be present in this solution. For example, you know water itself will be present, so you can begin each list with the chemical formula for water (H₂O). Note: "major" chemical species are those present in concentrations greater than 10 mol/L. major species present when dissolved in water 0 0 compound glycerol copper(11) lodide Explanation 7 A methanol 2 2 W formula alt CHO CH, OH Cul, Check 3 H…
For the reaction Fe,04(s) + 4H,(g)- →3FE(s) + 4H,0(g) AH° = 151 kJ and AS° = 169 J/K %3D %3D AG° for this reaction would be negative at temperatures (above, below) К. Enter above or below in the first box and enter the temperature in the second box. Assume that AH° and AS° are constant.
AH°; in kJ/mol N2H«() 39 N2Oalg) 20.39 N20(g) 107.9 H20(g) -257.3 Using the information given above, find AHn for the following reaction: ons N2H4 () + N204 (g) -------> 2 N2O (g) + 2 H20 (g) es