What is So for A in the reaction 3 A→ 2 B if AS° (rxn) =-106.8 J/mol · K? [S° (B) =(240.0 J/mol K)]•J/mol • K123☑456C78 9+/-0×10

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Answered: What is So for A in the reaction 3 A→ 2…

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter16: Spontaneity Of Reaction

Section: Chapter Questions

Problem 62QAP: Consider the reaction NH4+(aq) H+(aq)+NH3(aq) Use G f for NH3(aq) at 25C=26.7 kJ/mol and the...

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9.96 Most first aid "cold packs" are based on the endothermic dissolution of ammonium nitrate in water: NH4NO3(s)NH4+(aq)+NO3(aq) H= 25.69 kJ A particular cold pack contains 50.0 g of NH4NO3 and 125.0 g of water. When the pack is squeezed, the NH4NO3dissolves in the water. If the pack and its contents are initially at 24.0°C, what is the lowest temperature that this bag could reach? (Assume that the ammonium nitrate solution has a specific heat of 4.25J g-l K-l, and that the heat capacity of the bag itself is small enough to be neglected.)
Consider a metal ion A2+ and its nitrate salt, In an experiment, 35.00 mL of a 0.217 M solution of A(NO3)2 is made to react with 25.00 mL of 0.195 M NaOH. A precipitate, A(OH)2, forms. Along with the precipitation, the temperature increases from 24.8C to 28.2C. What is H for the precipitation of A(OH)2? The following assumptions can be made. â€¢ The density of the solution is 1.00 g/mL. â€¢ Volumes are additive. â€¢ The specific heat of the solution is 4.18 J/g C.
A process that is reactant-favored at equilibrium can never be spontaneous. This statement is (a) true (b) false
Consider the reaction NH4+(aq) H+(aq)+NH3(aq) Use G f for NH3(aq) at 25C=26.7 kJ/mol and the appropriate tables to calculate (a) G at 25C (b) Ka at 25C
Suppose you have an endothermic reaction with H = + 15 kJ and a S of 150 J/K. Calculate G and Keq at 10, 100, and 1000 K.
Suppose you have an endothermic reaction with H = +15 kJ and a S of + 150 J/K. Calculate G and Keq at 10,100, and 1000 K.
Another step in the metabolism of glucose, which occurs after the formation of glucose6-phosphate, is the conversion of fructose6-phosphate to fructose1,6-bisphosphate(bis meanstwo): Fructose6-phosphate(aq) + H2PO4(aq) fructose l,6-bisphosphate(aq) + H2O() + H+(aq) (a) This reaction has a Gibbs free energy change of +16.7 kJ/mol of fructose6-phosphate. Is it endergonic or exergonic? (b) Write the equation for the formation of 1 mol ADP fromATR for which rG = 30.5 kJ/mol. (c) Couple these two reactions to get an exergonic process;write its overall chemical equation, and calculate theGibbs free energy change.
During an experiment where 50.0 mL of a 1.0 M acid solution was mixed with 50.0 mL of a 1.0 M base solution, the temperature change was measured to be 6.5 ℃. If the density of the resulting mixture is 1.10 g/mL, specific heat of the solution is 4.18 J/g℃, and the Cal constant was 12.0 J/℃, what is the ∆Hrxn in kJ/mol acid?
Consider the reaction A → B with ΔS° = 75.580 J/(K·molrxn). What should be the ΔS° in J/(K·molrxn) for the reaction 5 A → 5 B? Report your answer to three decimal places.
A student observed that, when 0.243 g of magnesium was added to 100.0 g of hydrochloric acid, the temperature of the solution increased 11.2 °C. Without doing any calculations, what observations can you make to support your claim that the reaction that occurred between magnesium and hydrochloric acid was exothermic?
Which statement best describes the reaction TiCl4(l) + 2H2O(l) --> TiO2(s) + 4HCl(aq) at a low temperature of 25 °C that has ∆H°= -288 kJ and ∆S°= - 85.4 J? The reaction is nonspontaneous. Heat is absorbed during the reaction. Products formation results in increased disorder. The reaction occurs spontaneously.
At 25 °C, what is the Keq for a reaction where ΔH∘= –9.3 kJ/mol and ΔS∘= 75.5 J/mol·K?

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What is So for A in the reaction 3 A→ 2 B if AS° (rxn) =-106.8 J/mol · K? [S° (B) = (240.0 J/mol K)] • J/mol • K 1 2 3 ☑ 4 5 6 C 7 8 9 +/- 0 ×10