(a)
Interpretation:
From the given reaction, the reaction which has larger
Concept introduction:
Entropy: it is a measure of the freedom of motion in a system. Restricting the freedom of motion of a molecule depresses its entropy.
(b)
Interpretation:
It has to be checked that the reactions which have whether positive or negative
Concept introduction:
Entropy: it is a measure of the freedom of motion in a system. Restricting the freedom of motion of a molecule depresses its entropy.
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EP ESSENTIAL ORG.CHEM.-MOD.MASTERING
- Which of the following is a reaction rate? ∆mol/∆L ∆mol/∆s ∆M/∆V ∆mol/∆garrow_forwardWhich reaction represents this energy diagram? 2H,(g) - 0(g) AH-486.3 kJ 2H.O(g) 486.3kJ + 2H2O2 = 2H2(g) + O2(g) O 2H2(g) 2H2(2) + O21e) = = 2H2O + 486.3kJ 486.3kJ + 2H2(e) + O2(g) = 2H20(g) Heat + 2H2O(g) = 2H2(g) + O2(g) 2H20(g) 2H2(g) + O21e) + 486.3kJ Enthalpyarrow_forwardP12. If Keq for a reaction at 450 C was 3.4x10-³, what would be the standard free energy change at that temperature (in J/mol)? 21265 -21265 34166 -34166 none of the above A. B. C. D. E.arrow_forward
- Find DH°, for the reaction rxn 2Na(s) + 2H20(1) ® 2NAOH(aq) + 2H2(g). (DH°; (NaOH(aq)) = -426.8 kJ/mol; DH°F (H20(1)) = -285.5 kJ/mol) -568.1 kJ/mol -285.5 kJ/mol -282.6 kJ/mol )-1424.6 kJ/molarrow_forwardWhat is the free energy change for the reaction below, if the reaction quotient, Q, at 25.0oC is equal to 4.56e-6?2C2H2(g) + H2(g) ↔ C4H6(g) ΔGo = -216.790 kJ. ΔGo = -219.346 kJ ΔGo = 589.938 kJ ΔGo = -214.234 kJ ΔGo = -247.262 kJarrow_forward4arrow_forward
- Can someone draw a energy diagram with the following: Overall reaction is non-spontaneous, it’s 2 steps, 1st step is slow equilibrium (k=1), 2nd is faster than 1st how do I go about this?arrow_forwardHow do I know this spontaneous?arrow_forward2 A2B (Green)_+ 3 C2 = 2 A2C (yellow) + 2 BC2 AH = -288 kJ A.The reaction will shift to the left in the direction of reactants and the color observed will be green. B.The reaction will shift to the right in the direction of products and the color observed will be yellow. C.The reaction will shift to the left in the direction of reactants and the color observed will be yellow. D.The reaction will shift to the right in the direction of products and the color observed will be green. D. No effect will be observed. I D. Focus Warrow_forward
- 1. a) True or False? For a reaction at equilibrium, the value of AG is 0, which means that the process is not spontaneous in either direction. b) True or False? Catalysts accelerate chemical reactions by changing the mechanism and lowering E, but they are consumed or destroyed in the process. c) True or False? Enzymes (like alcohol dehydrogenase, which removes ethanol from our bodies) universally show zero order kinetics. d) True or False? For a reaction to be successful, molecules must collide with appropriate activation energy (E,), but their orientation with respect to one another is not important. e) True or False? The collisional frequency for 2 reactants increases as their concentration decreases.arrow_forward11arrow_forwardWhich of the following is NOT a valid expression for the rate of the reaction for the equation: 4NH3 + 7O2 --> 4NO2 + 6H2O ? -1/7 * ∆H2O/∆t -1/4 * ∆NH3/∆t 1/4 * ∆NO2/∆t 1/6 * ∆H2O/∆t None of the abovearrow_forward
- Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning