NH2 OH + HX + NEN AH (kJ/mol) -386 260.1 30.00 -393.5 S (J/mol K) 166 191.3 191.5 213.8 146.0 D. Based on the reaction equation given above, does entropy increase or decrease in this reaction? E Justify your answer to (D) with a calculation. Does your calculation agree with your prediction? F. Is this reaction thermodynamically favorable at 25 C? Justify with a calculation.

NH2 OH + HX + NEN AH (kJ/mol) -386 260.1 30.00 -393.5 S (J/mol K) 166 191.3 191.5 213.8 146.0 D. Based on the reaction equation given above, does entropy increase or decrease in this reaction? E Justify your answer to (D) with a calculation. Does your calculation agree with your prediction? F. Is this reaction thermodynamically favorable at 25 C? Justify with a calculation.

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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A chemical engineer is studying the two reactions shown in the table below. In each case, he fills a reaction vessel with some mixture of the reactants and products at a constant temperature of 15.0 °C and constant total pressure. Then, he measures the reaction enthalpy AH and reaction entropy AS of the first reaction, and the reaction enthalpy AH and reaction free energy AG of the second reaction. The results of his measurements are shown in the table. Complete the table. That is, calculate AG for the first reaction and AS for the second. (Round your answer to zero decimal places.) Then, decide whether, under the conditions the engineer has set up, the reaction is spontaneous, the reverse reaction is spontaneous, or neither forward nor reverse reaction is spontaneous because the system is at equilibrium. 6C(s) + 6H₂(g) + 30₂(g) 2Al(s) + 3H₂O(g) C6H₁2O6 (s) Al₂O3 (s) + 3H₂(g) AH = -1237. kJ AS-4214. AG = KJ Which is spontaneous? this reaction the reverse reaction neither ΔΗ = -951. kJ…
20. Calculate the change in internal energy (ΔE) for a system that is giving off 25.0 kJ of heat and is changing from 12.00 L to 6.00 L in volume at 1.50 atm pressure. (Remember that 101.3 J = 1 L∙atm) A. +25.9 kJ B. -16.0 kJ C. -25.9 kJ D. -24.1 kJ E. +937 kJ
ENTROPY AND FREE ENERGY Using the general properties of Gibbs free energy The standard reaction free energy AG = -910. kJ for this reaction: 6C(s) + 6H₂(9) + 30₂(9)-CH12O6(s) Use this information to complete the table below. Round each of your answers to the nearest kJ. reaction 12C(s) + 12H₂(g) + 60₂(g) → 2C,H,O,(s) - C₂H₁20 (9) 3C(s) + 3H₂(g) + 0₂ (4) CH₁20,(s) 6C(s) + 6H₂(g) + 30₂ (9) 1 AGⓇ kJ kJ 0 kJ 00
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1. A potential chemical reaction at 25.0 °C has a ΔHrxn of 147.5 kJ and a ΔSrxn of -386.9 J/K. What is the ΔGrxn in kJ. (Enter answer to 3 significant figures and include no units in your answer) Also, what is true about the potential reaction in the previous problem? a. spontaneous b. illegal c. combustive d. nonspontaneous
Read the descriptions of physical or chemical changes in the table below. Then decide whether the change will be spontaneous, if you can. Change An exothermic chemical reaction between a solid and a liquid results in gaseous products. A solid precipitates from a solution, absorbing heat as it does so. A gas expands, absorbing heat from its surroundings. Is this change spontaneous? Yes. No. Can't decide with information given. Yes. No. O Can't decide with information given. Yes. No. Can't decide with information given. X
Using the table of standard thermodynamic quantities, provided below, estimate the boiling point of CHCl3. The boiling point from literature is 61.2⁰C. Compare your calculated result with it and explain why if they are not the same.
Explain each of the Laws of Thermodynamics and to which law would Entropy and Enthalpy apply. Thank you!
4. For a chemical reaction that has a AGº value of +275 kJ/mol, what value must Q have for this system to be at equilibrium? Show all work. 30 281 SAS