A substance decomposes according to first order kinetics. The rate constants at various temperatures are as follows: T/C 15.0 20.0 25.0 30.0 37.0 k×10^6/S^(-1) 4.18 7.62 13.7 24.1 51.5 Calculate the activation energy and the pre-exponential factor (A).  Calculate also, at 25 C, the changes in enthalpy of activation (Δ H#), Gibbs energy of activation (ΔG#), and entropy of activation (ΔS#).

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 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,…

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Q: The rate constant of a first order reaction increases from 2 X 10-2 to 4×10-2  when the temperature…

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Q: Calculate the rate constant, ?, for a reaction at 75.0 °C that has an activation energy of 82.8…

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Q: Calculate the rate constant, ?, for a reaction at 64.0 °C that has an activation energy of 86.1…

A: T = 64.0 °C = 337 K Ea = 86.1 kJ/mol = 86100 J/mol A = 3.36 × 1011 s−1 k = ?

Q: The activation energy for a reaction is 533.2 kJ. The rate constant at 51.9ºC is equal to 1.57 x…

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Q: A reaction has an activation energy of 30,000 J. At 65 K, the rate constant is 0.085 s 1. At what…

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

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Q: The rate of the elementary reaction O₂+ H₂ → OH + OH has been studied as a function of temperature…

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Q: A first-order reaction has rate constants of 4.6 x 10-2 s-1 and 9.6 x 10-2 s1 at 0°C and 20.°C,…

A: The given data contains, k1=4.6×10-2/sk2=9.6×10-2/sT1=273 KT2=293 K

Q: For the hypothetical reaction A +B→C+D, we have the following temperature-dependent rate constant…

A: Given K1 = 6.817*10-4, T1= 298K K2 = 1.363*10-3 , T2 = 308K

Q: A first order reaction has a rate constant of 0.765 at 25 oC and 9.62 at 44.8 oC. Calculate the…

A: Here we use the arhenius equation, actually use this equation in two different temperatures by the…

Q: The rate constant of a reaction is 1.26 × 10-9 s-1 at 100.0oC and 6.18 × 10-5 s-1 at 200.0oC.…

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Q: A reaction has a rate constant of 0.388 min−10.388 min−1 at 373 K373 K and a rate constant of 0.953…

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Q: The activation energy for a reaction is 552.3 kJ. The rate constant at 51.9ºC is equal to 1.21 x…

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Q: For the following reaction, CO(g) + NO2(g) → NO(g) + CO2(g) Calculate the activation energy, Ea (kJ…

A: Given,  Reaction: CO(g) + NO2(g) ---> NO(g) + CO2(g)  We need to calculate the activation energy…

Q: Calculate the rate constant, k, for a reaction at 62.0 °C that has an activation energy of 89.6…

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Q: The rate constants for the first-order decomposition of an organic compound in solution are measured…

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Q: Given the following details about a reaction: activation energy = 2.3E4 J/mol Should the…

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Q: Our body obtains energy from the combustion of glucose. During this process, glucose is transformed…

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Q: The activation energy for this reaction is 274 kJ mol^-1. By what factor does the rate of reaction…

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Q: A chemical reaction is conducted at 2 different temperatures.  When the reaction is conducted at 400…

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Q: What is the rate constant at 56°C?

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Q: For a given reaction, it is determined that the rate constant at 428°C is measured at 2.57 1/(Ms)…

A: Interpretation: For a given reaction, the rate constant at 428°C is measured at 2.57 Ms-1 and the…

Q: Consider a reaction A → B. At 33.5 °C, the rate constant, k, for this reaction is 0.00918 s1. After…

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Q: A first-order reaction has rate constants of 4.6 x 10-² s¹ and 9.5 × 10-2 s¹ at 0°C and 20.°C,…

A: The given data contains,

Q: Which of the following does not determine the rate of reaction? the value of AH° the activation…

A: Answer:Rate of reaction is equal to the rate of change in concentration of reactant with respect to…

Q: The activation energy for a reaction is 509.2 kJ. The rate constant at 54.7°C is equal to 2.58 x…

A: Given data: The activation energy for a reaction (Ea) is 509.2 kJ. Temperature T1 = 54.7°C=54.7+273…

Q: At 25 degrees Celsius, a rate constant has the value 5.21×10-8L mol-1s-1. If the activation energy…

A: The rate constant can be calculated as follows: where k1 (rate constant) = 5.21×10-8 L mol-1s-1.…

Q: Experiments have shown that the average frequency of chirping by a snowy tree cricket (Oecanthus…

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Q: The activation energy for a reaction is 517.8 kJ. The rate constant at 50.9ºC is equal to 1.95 x…

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Q: In a series of experiments on the decomposition of dinitrogren pentoxide, N2O5, rate constants were…

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Q: The activation energy for a reaction is 517.3 kJ. The rate constant at 52.9ºC is equal to 1.41 x…

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Q: A first-order reaction has rate constants of 4.6 × 10-2 s-1 and  7.0 ×10-2 s-1 at 0°C and 20.°C,…

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Q: The reaction between hydrogen gas and iodine gas to form hydrogen iodide gas is first-order with…

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Q: A first-order reaction has rate constants of 4.6 x 10-2 s-1 and 9.8 x 10-2 s-1 at 0°C and 20.°C,…

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Q: Calculate the rate constant, ?, for a reaction at 63.0 °C that has an activation energy of 85.2…

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Q: The rate constants for the rearrangement of methyl isonitrile at various temperatures are measured.…

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Q: The rate constant of a reaction at 32 °C is 0.055/s. If the frequency factor is 1.2 * 10 13/s, what…

A: The below formula is used to determine the value of the activation barrier.

Q: A first order reaction has a rate constant of 0.803 sec-1 at 31.7 oC. If the activation energy is…

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Q: Calculate the activation energy, Ea for a reaction given that the rate constant is 4.60 × 10–4/s at…

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Q: a) The reaction of NO2 has been studied as a function of temperature. For the following…

A: Minimum energy required for reacting species to react  to form products

Q: a)The activation energy of a certain reaction is 48.9 kJ/mol. At 27  ∘C , the rate constant is…

A: Given data is as follows: The activation energy of the reaction Ea= 48.9 kJ/mol = 48900 J/mol…

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…

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Q: The activation energy (Ea) for the decomposition of a drug was determined to be 43.7 kJ/mol. The…

A: Rate constant (k) = 0.0368 s-1 Activation energy  (Ea) = 43.7 KJ/mol = 43.7×103 J/mol Temperature…