At 30oC and 70oC the first-order rate constants of a reaction are 6.88 x 10-5 and 2.45 x 10-2 s-1 respectively. What is the activation energy (kJ/mole)? (R = 8.31 J/mole oK).   Group of answer choices 127 271 217 721 172

Q: A possible reaction for the degradation of the pesticide DDT to a less harmful compound was…

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Q: At 50°C, what is the fraction of collisions with energy equal to or greater than an activation…

A: Given: Activation energy, Ea = 100 kJ/mol = 100000 J/mol Temperature, T = 50°C = 50 + 273.15 K =…

Q: The rate constant for the gas-phase decomposition of N2O5: N2O5 ---->2 NO2 + 1/2 O2 has the…

A: The rate constant for the gas-phase decomposition of N2O5: N2O5 ---->2 NO2 + 1/2 O2 has the…

Q: Calculate the activation energy, Ea, for the reaction 2 N₂O5 (g) → 4 NO2 (g) + O2(g) rom the…

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Q: 4. Variation of the rate constant with temperature for the first-order reaction 2N205(g) → 2N204(g)…

A: Given,                             T (K)                        k (s-1 )…

Q: The reaction C₂Hg (g) →2C₂H₂(g) has an activation energy of 262 kJ/mol. At 600.0 K, the rate…

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Q: For the first-order reaction 1/2 N204 -> NO₂(g); AH = 28.6 kJ the rate constant is k= 3.24 x 10^5…

A: Recall the data, Activation energy Ea=53.7 KJ mol-1=53700 J mol-1 T1=(-7+273)K=266 K…

Q: A hypothetical reaction: A--> B+C exhibits the rate law: Rate = k where k = 1.0 x 10-5 Ms-¹ at 25°C.…

A: The value of the rate constant for the reaction is = The unit of the rate constant states that the…

Q: The rate constant at 366 K for a first-order reaction is 7.7 x 10–3s-1 and the activation energy is…

A: Given: activation energy is 15.9 kJ/mol. R = 8.314 J/K.mol T= 366 K

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: Use the data below to calculate the activation energy for the reaction: CH3CHO →→→ CH4 + CO.…

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Q: What is the Activation Energy of a reverse reaction at 679K if the forward reaction has a rate…

A: Given: Temperature = 679 K Rate constant of forward reaction = 50 M-1 s-1 Pre-exponential factor =…

Q: A first-order reaction has a rate constant of 1.10 x 10-4 s-1 at 470°C and 5.70 x 10-4 s-1 at 500°C.…

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Q: A first-order reaction has a rate constant k = 0.0815 s-1 at a temperature of 65oC and a rate…

A: To calculate activation energy of the reaction in kJ/mole with the given rate constant at different…

Q: Consider the reaction: 2 NO2 (g) → NO3 (g) + NO (g) with 2-mol NO2 (9) transformed into 1-mol NO3…

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Q: The reaction between nitrogen dioxide and carbon monoxide is NO₂(g) + CO(g) → NO(g) + CO₂(g) The…

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Q: The decomposition of N2O5(g) to NO2(g) and O2(g) obeys first-order kinetics, where k = 3.4 x 10–5…

A: The objective of the question is to calculate the initial rate of reaction for the decomposition of…

Q: The kinetics of the following second-order reaction were studied as a function of temperature:…

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Q: rate =

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Q: For a certain reaction, the frequency factor A is 7.5 × 10⁰ s¹ and the activation energy is 21.4 the…

A: Recall the data, A=7.5*109 s-1 Ea=21.4 KJ mol-1 T=95°C rate constant k=?

Q: Consider a reaction A → B with activation energy 50.7 kJ/mol.   At 19.5 °C, the rate constant, k,…

A: Activation energy Ea = 50.7 kJ/mol = 50700 J.mol-1Initial Temperature T1 = 19.5°C = 19.5 +273.15 =…

Q: 1a) A(g) + B(g) C(g) The rate law for the above reaction is: -d[A]/dt = k[A][B] The rate…

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Q: The rate constant for the reaction below at 701K is 2.57 M-1s-1. NO2 (g) + CO (g) → NO (g) + CO (g)…

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