Get premium membership and access questions with answers, video lessons as well as revision papers.

The diagram below shows energy levels for the reaction

      

The diagram below shows energy levels for the reaction
Q610282019817.png
(a) Work out the activation energy for the reaction
(b) Calculate the heat of formation of HF
(c) Is the reaction endothermic or exothermic?

  

Answers


Maurice
(a) 611-389 = +222KJ

(b) H = +222 – (611 – 100)
= -289KJ

(c) Exothermic reaction
maurice.mutuku answered the question on October 28, 2019 at 05:20


Next: Study the information in the following table and answer the questions that follow. The letters do not represent the actual chemical symbols of the elements.
Previous: Using the heats of combustion of the following substances, calculate the heat of formation of ethanol

View More Chemistry Questions and Answers | Return to Questions Index


Learn High School English on YouTube

Related Questions