Initial Knowledge Check Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy AS. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction A B C observations This reaction is exothermic. The reverse of this reaction is always spontaneous but proceeds slower at temperatures below 121. °C. This reaction is always spontaneous, but proceeds faster at temperatures below -14. °C. ΔΗ IS AS is ΔΗ IS AS is conclusions AH is AS IS X (pick one) ✓ (pick one) (pick one) (pick one) ✓ (pick one) ✓ (pick one) Question 12 S Kara V olo A

Initial Knowledge Check Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy AS. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction A B C observations This reaction is exothermic. The reverse of this reaction is always spontaneous but proceeds slower at temperatures below 121. °C. This reaction is always spontaneous, but proceeds faster at temperatures below -14. °C. ΔΗ IS AS is ΔΗ IS AS is conclusions AH is AS IS X (pick one) ✓ (pick one) (pick one) (pick one) ✓ (pick one) ✓ (pick one) Question 12 S Kara V olo A

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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Answer:B Please explain steps
Macmillan Learning For a particular reaction at 181.2 °C, AG= -861.43 kJ, and AS 116.09 J/K. Calculate AG for this reaction at -97.7 °C. AG= kJ
QUESTION 10 An ideal gas at initial temperature of 177°C was compressed isothermally between an initial pressure of 2 atm and final pressure of 15 atm. The work done on the system is : OA. -5.8634 Kj O B. -0.0168 KJ O C. 0.0293 KJ O D. 5.8634 kJ
Suppose that a chemical equation can be written as the sum of two other chemical equations. If two reactions have A values of-658 kJ and +458 kJ, what is AH for the reaction that is their sum? O-1116 kJ -200 kJ O +1116 kJ +200kJ Previous Next
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O3+ NO → O2 + NO2 is shown below: E (KJ) O3 + NO 200 11 Reaction Coordinate Which of the following are true? (Select all that apply.) ☐AE is positive. The value of AE in the presence of a catalyst would be smaller than -200 kJ. The value of Ea in the presence of a catalyst would be larger than 11.0 kJ. The magnitude of Ea for the reverse reaction is larger than 11.0 kJ. The energy of the products is lower than the energy of the reactants. O2 + NO2
Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy AS. if you have not been given enough information to decide a sign, select the "unknown" option. reaction observations conclusions AH is (pick one) This reaction is exothermic and proceeds A (pick one) positive negative unknown PICK OC slower at temperatures below 16. °C. AS is AH is Crystallization of a pure compound is B spontaneous only below 18. °C. AS is (pick one) v AH is (pick one) v This reaction is spontaneous except below 16. °С. As is (pick one) v
Please correct answer and don't use hend raiting
Please explain, correct answer and typed answer only
Examine the AH values given for a series of gaseous reactions that are listed below. Reaction 1: -84.9 kJ Reaction 2: 235 kJ Reaction 3: -66.7 kJ Reaction 4: 0.779 kJ For which reactions will the K, decrease with increasing temperature? Select all that apply. 04 1 3 The equilibrium constant does not change with temperature. 02
Use the References to access important values if needed for this questi Hint: No calculations are required. For the reaction Fe(s) + 2HCI(aq)- →FECI2(s) + H2(g) AH° = -7,40 kJ and AS° = 108 J/K At standard conditions, this reaction would be product favored at relatively low temperatures. at no temperature. at all temperatures. at relatively high temperatures. Submit Answer Try Another Version 1 item attempt remaining pt