19. Calculate AH° at 25°C for the following reaction:#2NO22NO + 02a. 57.05 kJb. –114.1 kJc. -28.5 kJd. 3255 kJe. none of these

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Answered: 19. Calculate AH° at 25°C for the…

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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2) a)Determine AGX"° values for the following Combustion reactions at 25°C b) Decide whether this reaction is spontanious at 25°C or not CH:(g) + 02(g) CO:(g) + H;0 (1) AH (kJ/mol) s° (kJ/mol) CH4 -74.87 0.186 0.205 CO2 H,O -393.51 0.214 -285.83 0.070
The Köp of silver bromide is 5.4 × 10-13 at 298 K. sp AgBr(s)= Ag*(aq)+Br (aq) What is A,Gᵒ? (R = 8.314 J/K mol) a. 3.0 × 10¹ kJ/mol b. -3.0 × 10¹ kJ/mol c. 5.87 kJ/mol d. -5.87 kJ/mol e. 7.0 × 10¹ kJ/mol
c, d, and e only
Given CH 3CO 2H( aq) H +( aq) + CH 3CO 2 –( aq) at 25°C, K a = 1.80 × 10 –5. What is Δ G° at 25°C? a. –2.27 kJ b. –27.1 kJ c. 27.1 kJ d. 2.27 kJ e. 27.1 J
Calculate K for the reaction of NO with O, to give NO2 at 25°C. AG° for this reaction is -70.5 kJ/mol. In which direction does the reaction proceed - to the products or reactants? How do you know?
Which one of the following parameter effects the free energy of a reaction? Select one: O a. Concentrations of the molecular products of the reaction b. Concentrations of the molecular reactants of the reaction O c. The standard free energy of a reaction O d. a & b O e. a & c O f. b & c O g. a, b & c
Consider the three hypothetical reactions shown below. In all cases, the value of AG° - 5.00 kJ moll for each reaction. The concentration for each species in each reaction is given next to the reaction. You may assume that T = 25.0 °C. What is the value of AG (not AG°) for each of these reactions under these conditions? Reaction 1: A B +C • [A] = 5.00 mM • [B) - 5.00 mM • [C) = 500. mM AG - kJ mol! React 2: D+E F • [D] - 50.0 mM • [E] = 100. mM • [F] - 100. mM AG = kJ mol1 Reaction 3: H • [G] = 100. mM • [H] - 50.0 mM Previous Next AG kJ mol-1 Show Hint please solve, where there is question mark there is sign of equilibrium
Energy drives chemical reactions. For a reaction that goes from Y→ X, using Table 3-1 in your book, how many times more [X] than [Y] will there be at equilibrium if the standard free energy change (Gᵒ)for that reaction is -2.8 kcal/mole? a. 10 O b. 1/10 c. 100 d. 10,000 e. Not enough information
For the reaction2NO(g) + 2H2(g)N2(g) + 2H2O(l)H° = -752.2 kJ and S° = -351.6 J/KThe standard free energy change for the reaction of 1.92 moles of NO(g) at 283 K, 1 atm would be ___ kJ.This reaction is (reactant, product) ____ fill in the blank 2 favored under standard conditions at 283 K.Assume that H° and S° are independent of temperature.
In what condition, a reaction is product-favored. Select the correct answer... a. K° = 0 and G° = 0. b. K° < 1 and G° = 0. c. K° < 1 and G° > 0. d. K° > 1 and G° < 0. e. K° = 1 and G° = 0.
Consider the two energy diagrams below. Rxn Rxn (а) (b) a. Which of the two reactions will occur at a faster rate? How do you know? b. Compare the delta G° for both reactions. At equilibrium, which reaction, if either, will give you a higher ratio of products to reactants?
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19. Calculate AH° at 25°C for the following reaction: #2NO2 2NO + 02 a. 57.05 kJ b. –114.1 kJ c. -28.5 kJ d. 3255 kJ e. none of these