The rate constant for the reaction H2(g) + I2(g) → 2HI(g) is equal to 2.40 M–1 s–1 at 355 ºC and 9.80 M–1 s–1 at 385 ºC. Using these results, estimated the value of the rate constant at 415 ºC.

Q: The rate constant at 325 °C for the decomposition reaction C4 H8 ⟶ 2C2 H4 is 6.1 × 10−8 s−1, and the…

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Q: For the reaction 4A+5B 2C+3 D 1 what is the magnitude of the rate of change for [B] when [A] is…

A: For the given reaction: 4A+5B→2C+3D The stoichiometric coefficients indicate that the 4 mol of A…

Q: The activation energy for a particular reaction is 102 kJ/mol. If the rate constant is 1.35 × 10¬ª…

A: Given information - activation energy, Ea = 102 kJ/mol =102000 J/mol  rate constant, k1 = 1.35 x…

Q: Explain the time dependence of the rates of a chemical reaction.

A: Rate of the chemical reaction is defined as the speed at which the reactants disappear or the…

Q: The activation energy for a particular reaction is 102 kJ/mol. If the rate constant is 1.35 × 10⁻⁴…

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Q: What are the four basic steps involved in heterogeneous catalysis?

A: In a chemical reaction when the phase of the catalyst is different from the phase of the reactant…

Q: Consider the reaction: Nz3) + 3H,g) – 2NH,(g) Suppose that a particular moment during the reaction,…

A: According to the law of mass action for the given reaction: Rate = -d[N2]dt=-13d[H2]dt=12d[NH3]dt…

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

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Q: Summarize the difference in the behavior of half-lives for first order vs. second-order reactions.

A: A half-life is calculated from the direct measurement concentration after it reduces to half of its…

Q: A reaction is found to have an activation energy of 108 kJ/mol. If the rate constant for this…

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Q: The rate constant of a reaction is 4.50X10⁻⁵ L/mol s at195°C and 3.20X10⁻³ L/mol s at 258°C.…

A: Record the given data, k1 = 14.50 x 10-5 L/moles k2 = 3.20 x 10-3 L/moles T1= 195ºC T2= 258ºC Ea = ?

Q: sucrose undergoes fermentation. If 10 M solution of sucrose is reduced to 5 M in 1 hours and to 2.5…

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Q: Manfred Eigen, a German physical chemist working dur- ing the 1970s and 1980s, earned a Nobel Prize…

A: Given - Rate of proton transfer from water molecule to ammonia = 2 x 105 S-1 Equilibrium constant Kb…

Q: The rate constant for a reaction is 1.08×10^7 M^-1 s^-1 at 298 K and 3.81 x 10^6 M^-1 s^-1 at 243K.…

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

Q: The activation energy for a particular reaction is 102 kJ/mol. If the rate constant is 1.35 × 10⁻⁴…

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Q: A chemical reaction has a rate constant of 0.0117 / s at 127 oC and 0.689 / s at 177 oC. Calculate…

A: We have given that T1 = 127°C = 400K T2 =  177°C = 450K K1 = 0.0117S-1 K2 = 0.689S-1 To Calculate Ea…

Q: What is the best way to ascertain that a reaction is first order?

A: if it the reaction is a first-order reaction, plot the natural logarithm of a reactant concentration…

Q: The activation energy for the reaction NO2 (g) + CO(g) → NO(g) + CO2 (g) is Ea = 350 kJ/mol and the…

A: • The given reaction is,       NO2(g) + CO(g) → NO(g) + CO2(g)    • The values provided in the…

Q: A particular second-order reaction has a rate constant of 2.4 x 10–6 M–1 s–1 at 575 K and 6.0 x 10–5…

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Q: The reaction N,0 (g) + 0 (g) → N2 (g) + O2 (g) has a frequency factor of 3.69 x 10° M-1 s-l and an…

A: If the temperature is changed or a catalyst is added, for example, the constant changes. This is…

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: The reaction A - B is found to be first order. At 650 K, 45 % of A has been converted to B in 75.0…

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Q: Suppose that a catalyst lowers the activation barrier of a reaction from 125 kJ/mol t o 55 kJ/mol.…

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Q: Estimate the rate of the reaction, H*(aq) + OH (aq) – H20() given that the rate law for the reaction…

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Q: The activation energy for a particular reaction is 102 kJ/mol. If the rate constant is 1.35 x 10 s1…

A: The rate constant will be calculated by using integrated arrhenius equation. Rate constant of…

Q: Define the molecularity of a reaction and explain how and when this is linked to the reaction…

A: Molecularity: The molecularity of a reaction is described as the number of reacting molecules that…

Q: The rate constant for the enzyme-catalysed decomposition of hydrogen peroxide, H 20 2, increases by…

A: We have to calculate the activation energy.

Q: A reaction between substances A and B has been found to give the following data: 3A +2B 2C+D Al…

A: Let the rate law for the reaction be :Rate = k [A] x [B] ywhere,k = rate constant for the reactionx…

Q: Consider the reaction N₂O(g) →N₂(g)1/2O₂(g) with Au has catalyst (a) Is the gold a homogeneous or a…

A: The given chemical equation is, N2Og→N2g+12O2g The catalyst used in the reaction is Au. (a) In…

Q: Use this information to write a rate law for this reaction, and calculate the value of the rate…

A: Rate of reaction = k * [H2]^a * [I2]^b k = Rate constant a,b: Order of reaction

Q: A decomposition reaction has a rate constant of 0.0012 y -1. How long does it take for [reactant] to…

A: Since the units of rate constant is in time-1  hence the reaction is first order as the units of…

Q: The rate constant of a first-order reaction is 2.65 x 10 139 kJ/mol, calculate the temperature at…

A: It can solved using Arenhius equation as shown below

Q: The activation energy for a particular reaction is 102 kJ/mol. If the rate constant is 1.35 × 10⁻⁴…

A: Activation energy at two different temperature related with rate constants. The relationship is…

Q: 1b Define the molecularity of a reaction and explain how and when this is linked to the reaction…

A: Molecularity is the number of reactant molecules which take part in the slowest step.

Q: The reaction C,H,(g)2C,H,(g) has an activation energy of 262 kJ/mol. At 600.0 K, the rate constant,…

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Q: The first step in the production of nitric acid is the combustion of ammonia:…

A: Rate of consumption of reactant is relate by rate of formation of product using Stoichiometric…

Q: 1 0.20 0.20 1.5 2 0.60 0.60 4.5 0.20 0.60 1.5 4 0.40 0.80 3.0 3.

A: From the experimental data,  Assume Rate law, Rate = k[A]m[B]n From exp (1) & (3) R1 =…

Q: Determine the rate constant for the reaction at 1500°C. X 3.517 M*s

A: Finding the rate law:

Q: Calculate the rate constant, k, for a reaction at 61.0 °C that has an activation energy of 78.9…

A: Answer:- This question is answered by using the simple formula of calculation of rate constant using…

Q: Calculate the ratio of rates of catalyzed to non-catalyzed reactions at 37°C, given that the Gibbs…

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Q: Determine the activation energy for the reaction.

A: Arrhenius equation for the rate constant where, k = rate constant A = exponential factor Ea =…

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 of a reaction is 33.4 kJ/mol. The rate constant for this reaction is 3.5 x…

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Q: A synthetic surfactant (S) is known to decompose in aqueous solution according to the following…

A: Observing the given statements shows that the 3rd half life duration value cannot be 10.5 minutes…

Q: Define rate constant (K).

A: The decrease in the concentration of reactants or increase in the concentration of the products per…

Q: The hydrolysis of sucrose (C12H22O11) into glucose and fructose in acidic water has a rate constant…

A: GIVEN: rate constant = 1.8 * 10 - 4 s-1 Volume of sucrose= 2.55L Molarity of sucrose = 0.150 M Time…

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: What is the activation energy of a reaction if it has the following rate constants? Rate Temperature…

A: Answer: This question will be solved using modified form of Arrhenius equation which is shown below:…