A certain reaction has an enthalpy of Δ=44 kJ and an activation energy of a=61 kJ. What is the activation energy of the reverse reaction?

Respuesta :

Answer:

E = 17 kJ

Explanation:

The enthalpy of the reaction is:

[tex] \Delta H = E_{p} - E_{r} [/tex]  

Where:

Ep: is the energy of the products

Er: is the energy of the reactants

Similarly, the enthalpy of the reaction is related to the activation energy forward ([tex]E_{F}[/tex]) and to the activation energy reverse ([tex]E_{R}[/tex]) as follows:

[tex] \Delta H = E_{F} - E_{R} [/tex]  

Having that ΔH = 44 kJ and [tex]E_{F}[/tex] = 61 kJ, the activation energy of the reverse reaction is:

[tex]E_{R} = E_{F} - \Delta H = 61 kJ - 44 kJ = 17 kJ[/tex]  

Therefore, the activation energy of the reverse reaction is 17 kJ.

I hope it helps you!

The activation energy of the reverse reaction is 17 kJ.

The given parameters;

  • enthalpy of the reaction, ΔH = 44 kJ
  • activation energy = 61 kJ

The activation energy of the reverse reaction is calculated by applying the following formula as shown below;

[tex]\Delta H = E_f - E_r\\\\E_r = E_f - \Delta H[/tex]

where;

  • [tex]E_r[/tex] is the activation energy of the reverse reaction
  • [tex]E_f[/tex] is the activation energy of the forward reaction

[tex]E_r = 61 - 44\\\\E_r = 17 \ kJ[/tex]

Thus, the activation energy of the reverse reaction is 17 kJ.

Learn more here:https://brainly.com/question/9061190