Calculate the activation energy, Ea, in kilojoules per mole for a reaction at 58.0 ∘C that has a rate constant of 0.255 s−1 and a frequency factor of 4.05×1011 s−1. Ea=                   kJ/mol

The rate constant for reaction is 4.1 × 10−3 L/mol·s at 25 °C and       9.3 × 10−3 L/mol·s at 125 °C. Calculate the activation energy (Ea) and frequency factor (A) for the reaction.

A substance decomposes with a rate constant of 9.05 × 10⁻⁴ s⁻¹. How long does it take for 23.0% of the substance to decompose?

A researcher raises the temperature from 15.9 to 30.1 o C and finds that the rate of the reaction doubles.  What was the activation energy (in J/mol) for this reaction? (R = 8.3145 J/mol

The energy of activation for a particular reaction is 23.7 kJ/mol. At 16.3 °C the rate constant of the reaction is 3.38 × 10° h. 1 Calculate the temperature (in °C) when the rate constant, k = 1.62 × 10 h. 1 R = 8.314472 J/mol K. Report your answer to THREE significant figures.

A particular reaction has an activation energy, Ea, of 189 kJ/mol.  If the rate constant for the reaction is 0.00205  s−1 at 457 °C, at what temperature (°C) would the rate constant be 0.200  s−1?

The activation energy for a particular reaction is 102 kJ/mol. If the rate constant is 1.35 × 10⁻⁴ s⁻¹ at 307 K, what is the rate constant at 273 K?

The rate constant of a first-order reaction is 4.60 x 10* s at 350 degrees Celsius. If the activation energy is 104 kJ/mol, calculate the temperature at which its rate constantis 8.80 x 104 s?.

Calculate the activation energy, E,, in kilojoules per mole for a reaction at 55.0 °C that has a rate constant of 0.288 s- and a frequency factor of 2.31 × 1011 s-1. E, = kJ/mol

Part A) The activation energy of a certain reaction is 30.5 kJ/molkJ/mol . At 20 ∘C∘C, the rate constant is 0.0130 s−10.0130 s−1. At what temperature would this reaction go twice as fast? Express your answer numerically in degrees Celsius   Part B)  Given that the initial rate constant is 0.0130 s−10.0130 s−1 at an initial temperature of 20 ∘C∘C, what would the rate constant be at a temperature of 100 ∘C∘C? Express your answer numerically in inverse seconds.