A. The reactions having G negative are spontaneous. The steps (c), (d), and (f) having G negative value are spontaneous because the reactions have sufficient free energy to proceed spontaneously.
B. The reactions having G positive value are not spontaneous because they require energy to proceed spontaneously. The reactions (a, (b), and (e) have positive G, so they are not spontaneous.
C. Reaction (a) have G = + 8.5 kcal/mol, so we need its G negative to make it spontaneous, in order to do that we can choose a rection having G greater negative than +8.5kcal/mol. From the above reactions only rection (d) has G = -9.5 kcal/mol. Therefore, this rection can make reaction to proceed spontaneously. Overall G= 8.5 -9.5 =-1 kcal/mol.
D. Reaction (c) and (d), having greater G than reaction (e), can force the reaction (e) to proceed spontaneously.
E. Reaction (d) can force both reaction (b) and (e) to proceed together as a part of the biochemical pathway.
3. (a) S>P AG8.5 kcal/mol (b) S → P ΔG + 3.5 kcal/mol (c) S-P AG-3.5 kcal/mol (d) S-) P ΔG_-9.5 kcal/mol (e) S → P ΔG= +3.0 kcal/mol (f) S-) P ΔG__ 2.5 kcal/mol A. (5 points) Which reactions are s...
Consider these hypothetical chemical reactions: A⇌B,ΔG= 13.7 kJ/mol B⇌C,ΔG= -27.2 kJ/mol C⇌D,ΔG= 6.20 kJ/mol What is the free energy, ΔG, for the overall reaction, A⇌D? Express your answer with the appropriate units. ΔG = Firefly luciferase is the enzyme that allows fireflies to illuminate their abdomens. Because this light generation is an ATP-requiring reaction, firefly luciferase can be used to test for the presence of ATP. In this way, luciferase can test for the presence of life. The coupled reactions...
D ⇌ E + F DeltaG = -100 kCal mol-1; Activation energy = 5 kCal mol-1 A+ B ⇌ F DeltaG = +30 kCal mol-1; Activation energy = 10 kCal mol-1 We can couple these two reactions to carry out the overall reaction. What is the overall reaction and What is the change in free energy of the overall reaction?
31. If the AG values for reactions A and B are -100 kj/mol and -10 kJ/mol, then: a. Reaction A proceeds at a faster rate than reaction B b. Reaction B proceeds at a faster rate than reaction A C. Only reaction A is spontaneous d. Only reaction B is spontaneous e. No conclusion can be deduced regarding the rates of the reactions 32. On the following plot, the estimated Vmax for the enzyme is: a. -0.02 b. 25 C....
Consider reaction 1, which is A + B C + D; reaction 2, which is C + D E + F; and reaction 3, which is E + F G + H. ΔG°´ for the first reaction is -3.1 kcal/mol; ΔG°´ for the second reaction is 4.2 kcal/mol; and ΔG°´ for the third reaction is 0.7 kcal/mol. Given this information, what would be the value of ΔG°´ (in kcal/mol) for the following net reaction ( A + B G +...
Which of the following is true regarding ᐃG? (mark all that apply) Group of answer choices When Keq is >> 1, ᐃG is large and negative When Keq is << 1, ᐃG is large and positive When Keq is << 1, ᐃG is small and positive When Keq is << 1, ᐃG is large and negative When Keq is >> 1, ᐃG is small and positive 2-Why is coupling of reactions an important biochemical mechanism to allow non-spontaneous reactions to...
view Use these responses for the next 3 questions: A.+AH B.-AH C.-AG D. +AG E. +AS F.-AS Which represents an exothermic chemical reaction? represents a spontaneous chemical reaction? 3. F Which would be used to represent a system with increasing order? 2. Which For the following three questions, use A. Xonly B.Y only C. both X and Y D. neither X nor Y 4. A In which of the following reactions does the entropy increase? reactionX: CaCOs(s) → CaO(s)+000 5.上...
6. Consider the reactions in which the elements A, B, C, and D are elements in their most stable states: a. Draw out a thermodynamic cycle to describe the formation of E. b. Using the following table of ΔG° values, what is the value of Δ(G" for the formation of E? AG (kJ/mol) reaction 100 120 40
pls do all Page 12 of 14 36. (15 points) A spontaneous galvanic cell consists of one half-cell that e ontains Agia) and rea ad one half-cell that contains Cucs) and Cu2+(ag). The standard reduction reactions are listed below Cu2+(aq) + 2 e-→ Cu(s) +0.34 V Identify which half reaction is happening at the anode and the cathode reaction for this spontaneous galvanic cell. a. and write the gwerall Calculate E°cell for this reaction. b. for this reaction. Calculate Δ...
25 20 15 B Free Energy (kcal/mol) 10 tions A 5 e 0 Reaction progress Use the reaction energy diagram above to answer the following questions. Calculate the activation energy, AG #, for the step B to C. Include algebraic sign.[ kcal/mol Calculate the overall energy change, AGO, for the process A to B. Include algebraic sign. kcal/mol Which step is faster, (a) C to B or (b) B to A?
1.0 s; (b) 2.5 s; (c) 3.5 s; (d) 4.5 s; (e) 5.0s; 15 10F 5 0 5 56t(s)