The rate constant for a reaction at 40.0°C is exactly 5 times that at 20.0°C. Calculate the Arrhenius energy of activation for the reaction

Q: A certain reaction has an activation energy of 72.14 kJ/mol. At what Kelvin temperature will the…

A: Activation Energy:             For atoms to undergo a chemical transformation, they need the energy…

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

A: Arrhenius equation tells how rate of reaction depends on temperature. It is given as:

Q: (a) Explain the following terms :(i) Order of a reaction(ii) Molecularity of a reaction(b) The rate…

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Q: C. For the reaction 2H1 (aq) + H₂O₂ (aq) → 1₂ (aq) + 2H₂O The kinetics of the reaction can be…

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Q: Suppose that a catalyst lowers the activation barrier of a reaction from 127 kJ/molkJ/mol  to 58…

A: This  question  based on simple  Arhenuis  equation.   K = Ae-Ea/RT

Q: What is the activation energy for a reaction if k = 1.89 × 10–1 s–1 at 541 Kelvin and k = 5.93 s–1…

A: At one condition, Temperature (T1) = 541 K Rate Constant (k1) = 1.89 × 10-1 s-1   At another…

Q: A slightly bruised apple will rot extensively in about 2.5 days at room temperature (24.0 ° C). If…

A: The minimum amount of energy required by reactant molecules to participate in a reaction called…

Q: The rate constant for a reaction at 40.0°C is exactly 3 times that at 20.0°C. Calculate the…

A: Chemical kinetics:

Q: For the following reaction producing 1 mol of oxygen gas at a particular temperature, ΔH = –180 kJ.…

A: For an exothermic reaction, the activation energy for the reverse reaction is greater than the…

Q: For each of the following reaction diagrams, estimate the activation energy (E,) of the reaction:…

A: When a reaction proceeds, there is a time when the compound breaks old bonds and makes new bonds,…

Q: 1. Differentiate the different orders of reaction (First, Second, Zero order

A: Zero order reaction :           Zero order reaction refers to chemical reaction whose rate of…

Q: The decomposition of hydrogen peroxide (H202(aq)) is proposed to follow a reaction mechanism of:…

A: Catalyst is the one that speeds up a chemical reaction by lowering activation energy of reaction.…

Q: Suppose that a catalyst lowers the activation barrier of a reaction from 127 kJ/mol to 51 kJ/mol .…

A: Activation energy is the minimum energy required for a chemical reaction or reactants to go to…

Q: 14. What is activation energy? Is it always constant for the same reaction? Why ? (3pts)

A: Given Activation energy activation energy is always constant for the same reaction

Q: The chirping rate of an insect, a result of biochemical reactions, is found to increase with…

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Q: If a temperature increase from 20.0 °C to 35.0 °C triples the rate constant for a reaction, what is…

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Q: Food rots about 40 times more rap idly at 25 oC than when it is stored at 4 oC . Estimate the…

A: Calculation of Activation energy for the process of decomposition: The problem can be solve by the…

Q: Consider the initial-rate data at a certain temperature in the table for the reaction described by…

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Q: What is ∆H (in kJ/mol) for a reaction where the activation energy is 250 kJ/mol while the activation…

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Q: The rate at which popcorn pops is described by the Arrhenius equation. The activation energy for…

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Q: An Arrhenius plot  (ln k vs. 1/T) of data gathered while measuring the effect of temperature on the…

A: Given that the equation of trend line, y=−6481.3x+14.945 we have to find activation energy Ea.

Q: Rates of Reactions Consider reactions of the type: Reactant 1 + Reactant 2 Products The activation…

A: Answer: On increasing the temperature, rate of reaction increases because increase in temperature…

Q: The activation energy of a particular reaction is 65.7 kJ/mol. How much faster does the reaction…

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Q: 4) Given the same concentrations, the reaction CO(g) + Ch(g) → COCI;(g) at 250°C is 1.50 x 10° times…

A: The relationship between rate constants at two different temperatures and activation energy is shown…

Q: The activation barrier for the hydrolysis of sucrose into glucose and fructose is 108 kJ/mol. If an…

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Q: The rate of the reaction CH,COOC,H (ag) + оН (ад) — СH,COO "(аg) + Cән,ОН(ад) was measured at…

A: The least energy requiring in reactants conversion to products and effective collision is denoted…

Q: For the reaction, the energy of activation is 75KJ / mol. When the energy of activation of a…

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

Q: 2. Describe the following quantities: activation energy (Ea), barrier height (Eb), threshold energy…

A: Answer is given below

Q: If a catalyst changes the activation energy of a forward reaction from 117 kJ/mol to 96 kJ/mol, what…

A: Catalyst can be defined as a substance which increases the rate of reaction without being consumed.…

Q: 1,200 Determine the forward activation energy and change in for a reaction from the graph below. A)…

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Q: Determine which of the two diagrams here (both for the same reaction) involves a catalyst, and…

A: Activation energy,Ea, is the minimum energy required for reactants to get converted to products.…

Q: What is the effect of temperature on the rate of reaction? Explain givingreasons.

A: Chemical kinetics is the study of the reaction that how fast or slow a reaction is taking place. The…

Q: Consider two reactions. Reaction (1) has a constant halflife,whereas reaction (2) has a half-life…

A: The half life of any reaction is given by  1) Half life = ln(2) / K = constant                for…

Q: For the gaseous reaction: 2NO + 2H, → N, + 2H,O The following data at 1100 K were obtained: Reactant…

A: The reaction is – 2NO+ 2H2→N2+2H2O

Q: Assuming that the collision factor remains the same, by what factor will the catalyst increase the…

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Q: Write the reaction rate equation and identify the order of reaction for the following equations: a.…

A: Rate of a chemical reaction is defined as the speed with which the reaction proceeds. It determines…

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

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Q: The activation energy of an uncatalyzed reaction is 94 kJ/molk. The addition of a catalyst lowers…

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Q: What is the statement about the slow step in the mechanism for a reaction mechanism?

A: A reaction which occur in more than one step is called a complex reaction. The different steps of…

Q: ST6D.3 - Given one billion collisions, how many collisions have sufficient energy to cause a…

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Q: A particular first-order reaction has a rate constant of 1.35 × 10² s¯ at 25.0 °C. What is the…

A: Given  a first order reaction with rate constant (k1) =1.35 ×102 s-1  Temperature (T1) = 25 °C+ 273…

Q: What is ∆H (in kJ/mol) for a reaction where the activation energy is 250 kJ/mol while the activation…

A: Given : Activation energy of forward reaction = 250 KJ/mol Activation energy of reverse reaction =…

Q: The rate constant of a reaction is 5.00 s-1 at 270C. What will be the rate constant at 470C if the…

A: According to unit conversion, 1 kJ is equal to 103 J/kJ and the given temperatures, 27oC and 470C…

Q: substance decomposes with a rate constant of 9.05 × 10⁻⁴ s⁻¹. How long does it take for 24.5% of the…

A: Using basics of first order of reaction to calculate the time required.

Q: Consider the two-step mechanism for the destruction of ozone. step 1: O, (g) + НO(g) HO, (g) + 0,(g)…

A: Given,   step 1: O3(g) + HO(g) ⟶ HO2(g)+ O2(g)  step 2: HO2(g) + O(g) ⟶ HO(g) + O2(g)

Q: Does the rate constant depend on the concentrations of the reactants?

A: Rate constant:- It is defined as the rate of reaction when the concentration of reactants taken as…

Q: Which statement is incorrect for the following reaction profile? 2 50 +37.5 1 25 +12.5 3 Reaction…

A: Ans ACDE

Q: Nitrite ion reacts with ozone in aqueous solution, producing nitrate ion and oxygen: NO−2 ​(aq)+O3…

A: ReactionNO2-(aq) + O3(g) → NO3-(aq) + O2 (g)Average rate   (0-100μs)r = -dcadt   = -(9.93 x10-3-1.13…