O Using the values of AH and AS for the reactants and products from the tables, determine the values for AHon and AS for the reaction below and then use these values to calculate the AG for the reaction at 25°C. Explain whether this reaction is spontaneous as written. CHSOH - CHỊCHO (g) + H₂ (8) What would be the value of AGO for the reaction at 1125°C? Explain whether this reaction is spontaneous as written at this temperature.

O Using the values of AH and AS for the reactants and products from the tables, determine the values for AHon and AS for the reaction below and then use these values to calculate the AG for the reaction at 25°C. Explain whether this reaction is spontaneous as written. CHSOH - CHỊCHO (g) + H₂ (8) What would be the value of AGO for the reaction at 1125°C? Explain whether this reaction is spontaneous as written at this temperature.

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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Which statement is true regarding a process for which AH is negative and AS is zero? Recall that, for any process: AG=AH-TAS O The process is not spontaneous at any temperature. O The process is spontaneous at high temperatures only. O The process is spontaneous at low temperatures only. The process is spontaneous at all temperatures. Hint Save for Later Su
Consider the reaction described by the chemical equation shown. C,H,(g) + H,O(1) – C,H,OH(1) AH xn = -44.2 kJ Use the data from the table of thermodynamic properties to calculate the value of ASxn at 25.0 °C. ASixn J.K-! Calculate AGixn ·
For each of the following reactions indicate whether as written it will be spontaneous at all temperature only at high enough temperatures only at low temperatures not at any temperatures or if the given information is insufficient to draw a conclu
Consider the following reaction at constant pressure. Use the information here to determine the value of AS surr at 298 K. Predict whether or not this reaction will be spontaneous at this temperature. N₂(g) +202(g) → 2NO₂(g) AHrxn = +88.4 kJ mol-1 ASsurr = +88.4J K-1 mol-1, reaction is spontaneous Assurr = -88.4J K-1 mol-1, reaction is spontaneous ASsurr = -88.4J K-1 mol-1, reaction is not spontaneous ASsurr = +297 J K-1 mol-1, reaction is spontaneous ⒸASsurr = -297J K-1 mol-1, reaction is not spontaneous
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2 For the synthesis of ammonia where AG = -33.3 kJ/mole, determine whether the reaction is spontaneous at 25 C with the following pressures: PN, = 1.0 atm, PH, = 3.0 atm, PNH, = 0.020 atm N2(8) + 3H2(g) = 2NH3(g)
59. Methanol (CH3OH) burns in oxygen to form carbon dioxide and water. Write a balanced equation for the combustion of liq- uid methanol and calculate AHan, ASs and AG at 25 C. Is the combustion of methanol spontaneous?
4
A reaction has AH°= 100 kJ/mol and AS°= 250 J/mol.K. Is the reaction spontaneous at room temperature? If not, under what temperature conditions will it become spontaneous?
Be sure to answer all parts. From the values of AH and AS, predict which of the following reactions would be spontaneous at 25°C: reaction A: AH=10.5 kJ/mol, AS= 30.0 J/K mol; spontaneous nonspontaneous impossible to tell reaction B: AH=1.8 kJ/mol, AS = -113 J/K mol, spontaneous nonspontaneous impossible to tell If either of the reactions is nonspontaneous, can it(they) become spontaneous? ves, reaction A can become spontaneous Prev 7 of 14 Next >