4. An enzyme lowers the activation energy barrier for a chemical reaction. In addition, it changesthe Gibbs free energy for the reaction such that the equilibrium between the reactants andproducts is altered.

The objective of the question is to estimate the given statement about working and affect of enzyme…

4. An enzyme lowers the activation energy barrier for a chemical reaction. In addition, it cha the Gibbs free energy for the reaction such that the equilibrium between the reactants and products is altered.

4. An enzyme lowers the activation energy barrier for a chemical reaction. In addition, it cha the Gibbs free energy for the reaction such that the equilibrium between the reactants and products is altered.

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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Similar questions

1. Which one of the following statements is not correct? (a) The value of equilibrium constant is changed in the presence of a catalyst in the reaction at equilibrium. (b) Enzymes catalyse mainly bio-chemical reactions. (c) Coenzymes increase the catalytic activity of enzyme. (d) Catalyst does not initiate any reaction.
Estimate the value of the equilibrium constant Kc for the reaction below from the data in the graph.
Consider the exothermic reaction: C2H4(g) + I2(g) = C2H412(g) In trying to maximize the amount of C2H412 produced, which of the following will not work? Assume that the reaction mixture reaches equilibrium. O increasing the temperature O decreasing the volume of the reaction vessel O increasing the amount of C2H4 O adding more l2
Consider the following equilibrium: Br2(l) + H2O(l) =2H+(aq) + Br-(aq) + BrO-(aq) Write the Kc expression. A chemist would like to shift this equilibrium to the product side. The only reagents that are available are HCl(aq) and NaOH(aq). Which solution should the chemist add? Explain your answer. Would adding this reagent cause the Kc value to permanently change? Explain your answer.
Given the reaction: CO(NH2),(s) + H2O(g) = CO2(9) + 2NH3(g) -- Kp If this reaction system is initially at equilibrium and a catalyst is added, the new position of equilibrium will be = 1.39 at 500 K The value of K, for the given reaction at 600 K is The reaction CO(NH₂)₂(s) + H₂O(g) → CO₂(g) + 2 NH₂(g) is -- A flask containing CO₂(g), NH₂(g), CO(NH₂)₂(s) and H₂O(g) is initially at equilibrium at 500 K. When the flask is heated to 600 K, the amounts of CO(NH₂)₂(s) and H₂O(g) decrease and the amounts of CO₂(g) and NH₂(g) increase. This means that:
|For the equilibrium system CuO (s) + CO (g) = Cu (s) + CO2 (g), predict the effect that the indicated stress will have on the specified quantity. a) The effect of adding CO on the amount of Cu (s) b) The effect of adding CO2 on [CO] c) The effect of removing CuO on the [CO2] d) The effect of a catalyst on the amount of Cu (s) Do any of the stresses affect the value of K?
the equilibrium constant (K) is a quantitative measurement of theextent to which a chemical or physical reaction proceeds to completion. If two reactants ofknown initial concentration are mixed and then the concentrations of the products aremeasured once equilibrium has been established, then the equilibrium constant can becalculated using an ICE table.In this experiment you will measure the equilibrium constant for the formation of iron(III)thiocyanate from the iron(III) cation and thiocyanate anion:Fe3+(aq) + SCN-(aq) FeSCN2+(aq)The product, FeSCN2+, is intensely red, which means that its concentration can be measured byusing an ultraviolet-visible (UV-vis) spectrophotometer. So long as a solution is not tooconcentrated, the absorption of light at a particular wavelength by a chemical species isdescribed by Beer’s Law:A = εℓ[X] where A = absorption of light (unitless number)ε = molar absorptivity constant (cm-1 M-1)ℓ = path length (cm)[X] = concentration (M)The path length for our…
Predict and calculate the effect of concentration changes on an equilibrium system. Some (CH3)2CHOH is allowed to dissociate into (CH3)2CO and H₂ at 452 K. At equilibrium, [(CH3)2CHOH] = 0.294 and [(CH3)₂CO] = [H₂] = 5.94x10-2 M. Additional (CH3)2CO is added so that [(CH3)2CO]new = 9.02x10-2 M and the system is allowed to once again reach equilibrium. (CH3)2CHOH(g)(CH3)2CO(g) + H₂(9) (a) In which direction will the reaction proceed to reach equilibrium? (b) What are the new concentrations of reactants and products after the system reaches equilibrium? [(CH3)2CHOH] = [(CH3)2CO] = [H₂] M M M = 1.20x10-2 at 452 K
Consider the methanol synthesis reaction represented below. CO (g) + 2 H2 (g) = CH3OH (g) The initial concentrations were: [CO ] = 1.75 M, [H2] = 1.00 M, and [CH3OH] = 0.65 M. %3D %3D If the equilibrium [CO] was found to be 1.60 M, calculate the equilibirium constant (K) for this reaction. Note: Reaction temperature was kept constant throughout the process. 44 2.0 1.0 62
Identify the proper form of the equilibrium-constant expression for the equation N2 (g) + O2 (g) = 2NO(g) • View Available Hint(s) [NO] Ο Κ: [N2][O2] [NO]? O K: [N2][O2] 12 [N2][O2] O K = [NO]? 2[NO] Ο Κ- [N2][O2]
the equilibrium constant (K) is a quantitative measurement of theextent to which a chemical or physical reaction proceeds to completion. If two reactants ofknown initial concentration are mixed and then the concentrations of the products aremeasured once equilibrium has been established, then the equilibrium constant can becalculated using an ICE table.In this experiment you will measure the equilibrium constant for the formation of iron(III)thiocyanate from the iron(III) cation and thiocyanate anion:Fe3+(aq) + SCN-(aq) FeSCN2+(aq)The product, FeSCN2+, is intensely red, which means that its concentration can be measured byusing an ultraviolet-visible (UV-vis) spectrophotometer. So long as a solution is not tooconcentrated, the absorption of light at a particular wavelength by a chemical species isdescribed by Beer’s Law:A = εℓ[X] where A = absorption of light (unitless number)ε = molar absorptivity constant (cm-1 M-1)ℓ = path length (cm)[X] = concentration (M)The path length for our…
For the reversible decomposition/hydration reaction of CH3CO2CH3 (0.308 M) and H2O (0.110 M) to yield acetic acid (0.211 M) and methanol (0.076 M), what is the value for the Law of Mass Action? The equilibrium concentrations for each chemical are provided in parentheses after their name. This reaction occurs in the aqueous phase. 629 0.0110 0.00159 0.0521 19.2