5a) A certain reaction is completed 20% in 12.6 min at 300 K and in 3.20 min at 340 K.Calculate its activation energy.5b) Oxidation of lactate to pyruvate by cytochrome C (representing as cytochrome C(Fe*))is an important biolagical reaction. The followings are reduction reactions and the relevantstandart reduction potentials (E°) at pH = 7 and 25°C.Pyruvate + 2H* + 2e' → LactateE° = -0,185 VCytochrome C (Fe**) + e¯ → Cytochrome C (Fe2*)E° = 0.254 Vi) Write anodic, cathodic and total reactions.ii) Using the Gibss free energy and Nernst equations calculate the following equilibriumratio (K) at pH=7 and 25°C;[Cytochrome C(Fe²+)]²[Pyruvate][H*]²[Cytochrome C(Fe3+)]²[Lactate¬]

"Since you have asked multiple questions, we will solve the first question for you. If you want any…

Answered: 5a) A certain reaction is completed 20%…

Science

Chemistry

5a) A certain reaction is completed 20% in 12.6 min at 300 K and in 3.20 min at 340 K. Calculate its activation energy.

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

Chapter18: Electrochemistry

Section: Chapter Questions

Problem 3RQ: Table 17-1 lists common half-reactions along with the standard reduction potential associated with...

See similar textbooks

Related questions

Q: Given the same reactant concentrations, the reaction COg) + Cl,(8) → COC,(8) at 245°C is 136 times…

A: Recall the given reaction, CO (g) + Cl2 (g) -------> COCl2 (g) . The reaction at 245◦C is 136…

Q: A certain reaction has an activation energy of 30.07 kJ/mol. At what Kelvin temperature will the…

A: Arrhenius equation: If we know the value of the rate constant at two different temperatures, and the…

Q: The rate constant of a reaction increases by a factor of 1.41 when the temperature is increased from…

A: The Arrhenius equation can be rewrite for comparing the rate constant at two different temperatures.…

Q: The reactant concentration in a zero-order reaction was 7.00x10-2 M after 185 s and 2.00×10-2 Mafter…

A: For zero order reaction, the rate constant is calculated by using formula -dAdt=k where d[A] =…

Q: In a study of the temperature-dependence of a reaction, it was determined that the activation…

A: Arrhenius Equation: Svante Arrhenius created the Arrhenius equation in 1889 to demonstrate how…

Q: The activation energy of a non-catalyzed chemical reaction is 75 kJ/mol. However, the activation…

Q: In a reaction, the rate constant is found to be quadruple when the temperature increases from 30C to…

A: According to Arrhenious equation, rate constant of…

Q: Distinguish between reaction order and molecularity.

A: To differentiate between reaction order and molecularity.

Q: k (1/M s) t (°C) 1.87 X 10-3 600 0.0113 650 0.0569 700 0.244 750 Determine graphically the…

A: A numerical problem based on chemical kinetics, which is to be accomplished.

Q: A certain reaction has an activation energy of 61.40 kJ/mol. At what Kelvin temperature will the…

A: We have activation energy as 61.4 KJ, we have to calculate the Kelvin temperature at which reaction…

Q: A certain reaction has an activation energy of 59.16 kJ/mol. At what Kelvin temperature will the…

A: The Arrhenius equation is expressed as follows: lnk=-EaR1T+lnA Where, A represents pre-exponential…

Q: A certain reaction has an activation energy of 41.96 kJ/mol. At what Kelvin temperature will the…

Q: A certain reaction has an activation energy of 30.79 kJ/mol. At what Kelvin temperature will the…

Q: A certain reaction has an activation energy of 45.68 kJ/mol. At what Kelvin temperature will the…

A: The given information is: Activation energy = 45.68 kJ/mol = 45680 J/mol Temperature, T1 = 289 K Gas…

Q: A reactions rate constant (k) was measured at several different temperatures (T). A graph of ln K vs…

Q: A certain reaction has an activation energy of 71.24 kJ/mol.71.24 kJ/mol. At what Kelvin temperature…

A: Given, Activation energy of a reaction = 71.24kJ/mol. Initial temperature = 313K. k2/k1 = 3.00.

Q: A certain reaction has an activation energy of 64.0 kJ/molkJ/mol and a frequency factor of A1A1A_1 =…

A: The Arrhenius equation gives the dependence of the rate constant of a chemical reaction on the…

Q: A reaction has a constant half-life of 250 s. How long will it take for the reactant concentration…

A: Given: Reaction is having a constant half-life of 250 s. And to find the time required for the…

Q: The rate constant of a chemical reaction is found to triple when the temperature is raised from 24…

A: Two point Arrhenius equation is given by, Where, Ea is the…

Q: 6. A reaction has a rate constant of 0.0117 M/s at 400.0K and 0.689 M/s at 450.0K. What is the…

A: The activation energy is calculated by using following formula,

Q: For a reaction with an activation energy of 139 kJ/mol, how much must the temperature be raised…

A: Given, Activation energy = Ea = 139 KJ/mole Rate constant (k1) = K at temperature = T1 = 273 + 25…

Q: A reaction has an activation energy of 15 kJ mol. The temperature of the reaction must be increased…

Q: A certain reaction has an activation energy of 39.57 kJ/mol. At what Kelvin temperature will the…

Q: A certain reaction has an activation energy of 60.65 kJ/mol. At what Kelvin temperature will the…

Q: The activation energy for a reaction is changed from 184 kJ/mol to 59.0 kJ/mol at 600. K by the…

A: Activation energy (Ea) is changed from 184kJ/mol to 59.0kJ/mol Temperature = 600K Catalyzed reaction…

Q: A certain reaction has an activation energy of 60.78 kJ/mol. At what Kelvin temperature will the…

Q: For a certain reaction, the rate increased by a factor of 50 when the temperature was raised from…

A: The detailed solution of your question given below-- For this type question, first we apply the…

Q: The given first-order reaction A→B, has a rate constant of 1.60 x 10-2 s1 at 165°C and 6.54 x 10-'…

Q: The rate constant for the reaction PCl3 (g) + Cl2 (g) → PCl5 (g) is 1.3 x 103 M/min at 515 K, and…

A: Given, Reaction is, The rate constant for the reaction at 515 K…

Q: The rate constant of a reaction at 32 °C is measured to be 0.055/s. If the frequency factor is 1.2 ×…

Q: 3. A reaction has a rate constant of 0.0117 M/s at 400.0K and 0.689 M/s at 450.0K. What is the…

A: Given: Initial temperature (T1) = 400 K Final temperature (T2) = 450 K Initial rate constant (K1)…

Q: A certain reaction has an activation energy of 39.23 kJ/mol. At what Kelvin temperature will the…

A: Since the reaction is dependent on the rate constant and rate constant depends on the temperature.…

Q: A certain reaction has an activation energy of 59.88 kJ/mol. At what Kelvin temperature will the…

A: The expression for the ratio of two rate constants at the given temperature is given by Arrhenius…

Q: The rate constant for a first-order reaction is 1.4 × 10-2 s-1 at 646 K and 3.5 × 10-2 s-1 at 824 K.…

A: The relationship between rate constant k , activation energy Ea and temperature T is given by…

Q: A certain reaction has an activation energy of 44.26 kJ/mol. At what Kelvin temperature will the…

Q: For the gas-phase decomposition of N2 O5 , k is 1.4/s at 400 K, and 43/s at 450 K. What is the…

Q: A certain reaction has an activation energy of 57.33 kJ/mol. At what Kelvin temperature will the…

Q: A particular reaction is found to have a rate constant of 9.30×10-3 s-1 at 385 °C and 6.60 s-1 at…

Q: A certain reaction has an activation energy of 50.88 kJ/mol. At what kelvin temperature will the…

A: The relation between activation energy and temperature is given by Arrhenius equation. The…

Q: The mechanism of a reaction consists of a pre-equilibrium step with forward and reverse activation…

A: The activation energy of a reaction is the minimum required energy to give the product. In an…

Q: What is the fraction of collisions that have sufficient energy for reaction if the activation energy…

A: Activation energy, Ea = 50 KJ/mol or 50,000 J/mol Gas constant, R = 8.314 J/mol.K Temperature, T in…

Q: A certain first-order reaction has a rate constant of 2.50×10−3 s^−1. How long will it take for the…

Q: By plotting ln K vs 1/T, an equation of the line was obtained: y = -4865x + 1.946 Determine the…

Q: Distinguish between a) an elementary reaction and the overall reaction b) molecularity and reaction…

A: Ghus question is based on the difference of them, a)An elementary reaction and the overall reaction…

Q: The rate constant for a first-order reaction is 1.4 x 10-2s-1 at 646 K and 3.5 x10-2s-1 at 824 K.…

A: the relation between the rate constant and temperature is log(k2/k1) = Ea/2.303 R [(T2-T1)/T1T2]…

Q: The rate constant, k, for a first-order reaction is 1.36 x 10^3 s –1 at 90.°C and the activation…

A: Given-> K1 = 1.36 × 103 s-1 T1 = 90°C = 90 + 273 = 363 K K2 = ? T2 =…

Q: A reaction has an activation energy of 15 kJ mol1. The temperature of the reactic must be increased…

A: Solve by using Arrhenius equation....

Question

5a) A certain reaction is completed 20% in 12.6 min at 300 K and in 3.20 min at 340 K.
Calculate its activation energy.
5b) Oxidation of lactate to pyruvate by cytochrome C (representing as cytochrome C(Fe*))
is an important biolagical reaction. The followings are reduction reactions and the relevant
standart reduction potentials (E°) at pH = 7 and 25°C.
Pyruvate + 2H* + 2e' → Lactate
E° = -0,185 V
Cytochrome C (Fe**) + e¯ → Cytochrome C (Fe2*)
E° = 0.254 V
i) Write anodic, cathodic and total reactions.
ii) Using the Gibss free energy and Nernst equations calculate the following equilibrium
ratio (K) at pH=7 and 25°C;
[Cytochrome C(Fe²+)]²[Pyruvate][H*]²
[Cytochrome C(Fe3+)]²[Lactate¬]

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step 5

Trending now

This is a popular solution!

Step by step

Solved in 5 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

The free energy of the combustion of oxalic acid HC2H3O2 at 25.0 ºC is -246.05 KJ/mol. What is the equlibrium constant Ka at 25ºC?
Consider a general reaction A(aq)⥫⥬===enzymeB(aq) The Δ?°′ of the reaction is −5.870 kJ·mol−1. Calculate the equilibrium constant for the reaction at 25 °C. ?′eq=
If the concentration of Sn2+ ions in a solution of Sn(OH)2 was measured to be (1.41x10^-3), what is the Ksp value for Sn(OH)2?
Rose was studying the electric field effect on bacterial growth when he unknowingly carried out an anodic reaction on the platinum electrode that led to the discovery of the anticancer drug cisplatin, cis-[PtCl2(NH3)2]. > Determine the formation constant (Kf) of cisplatin at 25 °C.
What is the difference between a calibration curve and a standard curve in analytical chemistry? How can you distinguish between a reversible and an irreversible electrochemical reaction? What is the difference between accuracy and precision in analytical chemistry?
Use the table below to write BALANCED, SPONTANEOUS, DIFFERENT reactions and determine their potential.Reduction Reaction E°/VAu+ + e- → Au 1.69 VO2+ + 2H+ + e- → VO2+ + H2O 1.002Hg2+ + 2 e- → Hg22+ 0.92SO42- + 2H+ + 2 e- → H2SO3 + H2O 0.20IO3- + 6H+ + 5e- → I2 + 3 H2O 1.20a. Reaction with highest potential: E°/Vb. Reaction with lowest potential:c. Reaction with V oxidizing agent:d. Reaction with Hg oxidizing agent:
Calculate the emf, E at 298.15 K for the given reaction: Cr2O7 2 – (aq) + 14 H+ (aq) + 6 I – 1 è 2Cr 3+(aq) + 3I2(s) + 7H2O(l) When [Cr2O7 2 – ] = 2.0 M; [H+] = 1.0 M ; [I – 1 ] = 1.0 M ; [Cr 3+] = 1.0x10 – 5 M and [H2O] = 1.0 x 10 – 5 M Calculate the free-energy occurring in the system .
For each of the following reactions, write a balancedequation, calculate the standard emf, calculate ΔG° at298 K, and calculate the equilibrium constant K at 298 K.(a) Aqueous iodide ion is oxidized to I2(s) by Hg22+ (aq).(b) In acidic solution, copper(I) ion is oxidized to copper(II)ion by nitrate ion. (c) In basic solution, Cr(OH)3(s) is oxidizedto CrO42-(aq) by ClO-(aq).
The standard potentials for the reduction of nicotinamide adenine dinucleotide (NAD+) and oxaloacetate (reactants in the multistep metabolism of glucose) are as follows: Oxaloacetate^2- (aq) + 2H^+ (aq) +2e^- (aq) -------> malate^2- (aq) E°= -0.166 V NAD^+ (aq) + 2H^+ (aq) +2e^- -----> NADH(aq) + H^+ (aq) E°= -0.330 V 1. Calculate the standard potential (V) for the following reaction: Oxaloacetate^2- (aq) + NADH (aq) + H^+ (aq) -------> malate^2- (aq) +NAD^+ (aq) 2. Calculate the equilibrium constant at 298.15 K for the reaction.
assume that in a certain cell, the ratio of products/reactants or Keq = 778.3 (Keq is dimensionless) for the reaction Glucose + 2ATP <> Glucose-1,6-diP + 2ADP, at a particular instant, the concentrations of each compound were Glucose =3.5M, ATP =11.8M, ADP =13.4M and G-6-P =21.6M. Calculate the difference (dimensionless) between Keq and the ratio of products/ractants at this instance, in this cell, to five significant figures. Thank you for your assistance.
Please watch this video and solve the following two questions ( https://www.youtube.com/watch?v=ojZ9hpi-9w0&t=29s ) "preparation of aspirin" -What is the purpose of the concentrated sulfuric acid used in the first step? -Hydrochloric acid is about as strong a mineral acid as sulfuric acid. Why would HCl not be a satisfactory catalyst in this reaction?
At 25oC, for the reaction 2 A(aq) ----> B(aq) + C(aq), the equilibrium constant is 1.79 . If the concentration of B(aq) were 0.311 M and the concentration of C(aq) were 0.477 M, what would be the minimum concentration of A(aq) required (in mol/L) to make this reaction spontaneous under these conditions?