Suppose that a certain biologically important reactionis quite slow at physiological temperature (37 °C) in theabsence of a catalyst. Assuming that the collision factorremains the same, by how much must an enzymelower the activation energy of the reaction to achieve a1 x 105-fold increase in the reaction rate?

Q: A first-order reaction has rate constants of 4.6 x 10 2 s1 and 9.3 x 10 2 sl at 0°C and 20.°C,…

A:

Q: E17B.1(b) In a study of the enzyme-catalysed oxidation of ethanol, the molar concentration of…

A: GivenThe reaction is a first order reactionInitial concentration = 220 mmol/dm3Final concentration =…

Q: The rate constant of a particular reaction increases by a factor of 8 as the temperature is…

A:

Q: Suppose that a certain biologically important reaction is quite slow at physiological temperature in…

A:

Q: The activation energy of an uncatalyzed reaction is 95 kj/mol. The addition of a catalyst lowers the…

A:

Q: A laboratory manager performed an experiment to investigate the hydrolysis of 2-chlorooctane at…

A: The data given is,

Q: What is the activation energy for the isomerization of methyl isocyanide? Rate Constant Temperature…

A: Using the Arrhenius equation : log (k2/k1) = Ea/2.303.R [T2-T1/T1T2] ..................(1)  Here,…

Q: At 300 K the rate constant for a reaction is 1.0 x 1010 times greater in the presence of an enzyme…

A: Given: The rate constant for a reaction is 1.0×1010 times greater in presence of an enzyme compared…

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: What is the activation energy for the isomerization of methyl isocyanide? Rate Constant Temperature…

A: Given that K1 = 4.30 x 10 -3 min-1 K2 = 5.51 x 10-2  min-1  T1 = 472 K T2 = 503 K

Q: Enzymes in the human liver catalyze a large number of reactions that degrade ingested toxic…

A:

Q: Which reaction responds more strongly to changes of temperature, one with an activation energy of 52…

A: Given: Two reactions one with Ea value 52 kJ mol-1 and other with Ea value 25 kJ mol-1 Take a look…

Q: :Under what conditions of enzyme catalyzed reactions has maximum rate, order (followed) and why? i)…

A: 1.

Q: At body temperature (37°C), the rate constant of an enzymecatalyzed decomposition is 2.3 x 1014…

A: Given data: Body temperature = 370C = 310.15K Rate constant for enzyme catalyzed =2.3 x 1014  Gas…

Q: Q 6/ A- Given that the density and atomic weight of iron are 7.65 g/cm and 55.859 g/mol respectively…

A: Formula used :  Nv = N e-{Ea/KT} Where Nv is concentration at vacancy. N = concentration of atomic…

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

A: Given: Activation energy of the forward reaction       = 27 kJ mol-1 Activation energy of the…

Q: 22.5 A first-order decomposition reaction is observed to have the following rate constants at the…

A: Given information:

Q: The activation energy of one of the reactions in a biochemical process is 87 kJ mol−1. What is the…

A: Given information: Activation energy = 87 kJ/mol Initial temperature = 37 ℃ Final temperature = 15 ℃

Q: Suppose that, in the absence of a catalyst, a certain biochemicalreaction occurs x times per second…

A: The Arrhenius equation is given below.

Q: The activation barrier for a reaction is 77.0 kJ/mol. If an enzyme increases the rate of the…

A: Arrhenius equation is given by,  k = A.e-Ea/RT    k = rate of reaction  A = Arrhenius constant  Ea…

Q: The following chemical reaction HI(g) + CH;I(g) CH(g) + L(g) is characterized by the experimental…

A: A given chemical reaction is  HI (g) + CH3I (g) → CH4 (g) + I2 (g). Also, the given experimental…

Q: The rate constant of a certain reaction is known to obey the Arrhenius equation, and to have an…

A: Given information: Activation energy = 45.0 kJ/mol Rate constant (k1) = 1.8×104 M-1s-1 Temperature…

Q: Calculate the activation energy, Ea, in kJ/mol for the reaction N2O5(g) → 2 NO2(g) + 1/2 O2(g)…

A: Given,  rate constant k1 (at 25 ºC) = 3.46 x 10-5 s-1 and k2 (at 50 ºC) = 1.10 x 10-3 s-1 T1 = 298 K…

Q: At body temperature (37°C), the rate constant of an enzyme-catalyzed decomposition is 2.0 × 1011…

A: From the Arrhenius equation, rate constant (k) is given by: k = A exp (-Ea/RT) where A is collision…

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

A: Given T1 = 24°C = 297K T2 = 49°C = 322K

Q: If a first order reaction has a rate constant of 2.75 x 10-2 s-1 at 20°C what would be the value of…

A: Solution The chemist equation is AN expression that gives a relationship between the speed constant…

Q: Certain bacteria use the enzyme penicillinase to decom- pose penicillin and render it inactive. The…

A: Given,       Michalis - Menten constants for pencillinase to decompose penicillin  are Km = 5×10-5…

Q: The decomposition of nitrosyl chloride was studied: a. What is the rate law? b. Calculate the value…

A: Given: Decomposition of nitrosyl chloride: 2NOCl(g) <----> 2NO(g) + Cl2(g)

Q: 6. The enzyme-catalyzed conversion of a substrate at 25°C has Michaelis-Menten constant of 0.035 mol…

A: Micellization is considered as a dynamic phenomenon in which there are n monomeric surfactant…

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: The isomerization of methyl isocyanide, CH3NC - CH3CN, follows first- orderkinetics. The half-lives…

A:

Q: A chemical reaction is characterized by the following experimental data: Rate Constant (L mol-'s-l)…

A: The rate constant v/s temperature data given is,

Q: Aresearcher raises the temperature from 56.8 to 69.6 "C and finds that the rate of the reaction…

A:

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

A:

Q: Suppose that a certain biologically important reaction is quite slow at physiological temperature…

A: Arrhenius equation is given by,

Q: The rate constant of a certain reaction is known to obey the Arrhenius equation, and to have an…

A: The Arrhenius equation is as follows,

Q: N2O5( g) → 0{8) 2 NO2(g) + (8 F0 t1/2 = 20.5 h at 20°C and 3.5h at 40°C. (a) Calculate the…

A: We will use formula of activation energy and rate constant

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 activation energy for the denaturation of a protein is 385 kJ/mol. At what temperature will the…

A: Given Ea = 385 kJ T1 = 25°C

Q: A reaction has a rate constant of 7.3 x10 ^ -4 M/s at 315 K and a frequency factor of 4.4 x 10^7.…

A: The relation between rate constant, frequency factor, A and activation energy, Ea k = Ae-EaRT

Q: The activation energy for the decomposition of hydrogen peroxide is 46.00 kJ/mol. When the reaction…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: Vhat is the activation energy of a reaction if it has the following rate constants? Rate Constant…

A:

Q: The rate constant of a certain reaction is known to obey the Arrhenius equation, and to have an…

A: The term Arrhenius equation in chemistry can be defined as the equation which is used to dependence…

Q: The rate constant for the unimolecular decomposition of N_2O_5 was measured at two different…

A: The activation energy of reaction can be calculated using Arrhenius equation.

Q: Suppose that, in the absence of a catalyst, a certain biochemical reaction occurs x times per second…

A: The Arrhenius equation is given below.

Q: E17C.1(b) The equilibrium constant for the binding of a drug molecule to a protein was measured as…

A: Binding of substrate to active site of enzyme can be represented as

Q: In an enzyme-catalyzed 1st order process, a substrate has a half-life of 138 seconds. How long will…

A:

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....