What is the value of the activation energy?

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If a reaction has k=3.0 x 10^4 s-1 at 25°C and an activation energy of 100.0 kJ/mol, what will the value of k?

If a reaction has k= 3.0 x 10^-4 s^-1 at 25°C and an activation energy of 100.0 kJ/mol, what will the value of k be at 50°C?

Answer:

You have to use the Arrhenius equation twice: k = A e^(-E/RT) where, k = rate constant at Temperature...

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Other solutions

Answer:

On One Hand: Activation Energy Is a ConstantReaction energy profiles typically show a curve with one...

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Answer:

The activation energy/rate of a reaction are related by the equation k=Aexp(-Ea/RT), where k is rate...

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Answer:

Universally Accepted Activation Energy = 8.314e-3 x ((270 x 300) / (300 - 270)) * ln(1.4e-10 / 1.1e...

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A reaction has an activation energy of 116.065 kJ/mol. The conditions are such that it has a particular value?

At what temperature (K), would the rate constant increase by a factor of 6.486 to 6.486k? Use R = 8.314 J/K·mol in your calculation

Answer:

Let UNITs guide you; always USE THEM in your calculation to prevent errors Rate1 = A e^(-E/RT1) Rate...

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How do I estimate activation energy at one temp with knowledge of activation energy at another temp?

I have a value of activation energy at one temperature and need to estimate it at another but do not have any data at this other temperature

Answer:

What varies with temperature is not the activation energy, but the rate of reaction. Activation energy...

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Activation energy?

if the following exothermic chemical reaction has an activation energy value measured to be 54kcal/mole and its heat of reaction value is measrued to be -42kcal/mole CO+Cl2= COCl2 ...show more

Answer:

96cal/mol.

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How to find rate constant and activation energy?

Rate constants for the reaction NO2+CO > NO+CO2 are 1.3 1/M*s at 700K and 23.0 1/M*s at 800K. 1) What is the value of the activation energy in kJ/mol? 2) What's the rate constant at 730K?

Answer:

1) What is the value of the activation energy in kJ/mol? Use the relation: ln (k'/k) = Ea/R ( 1/T- ...

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Endothermic reaction activation energy?

if the following exothermic chemical reaction has an activation energy value measured to be 54kcal/Mole and its heat of reaction valur is measured to be -42kcal/Mole CO(g) + Cl2(g)= ...show more

Answer:

Let Er = Energy of reactant; Ep = Energy of product; E* = Energy of activated complex and Ea = Energy...

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Activation energy is 1. the energy released when products are formed. 2. the maximum amount of energy that ca?

Activation energy is 1. the energy released when products are formed. 2. the maximum amount of energy that can be used during a reaction. 3. the energy of the chemically active reactant. 4. the energy required to initially start a chemical reaction....

Answer:

Technically 4 is more correct than 5. However they are both right.

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