CHEMISTRY QUESTION ON RATE OF CHEMICAL REACTION

Question

QUESTION2

2.1. List four factors that can increase the rate of a chemical reaction. 

2.2 What two factors determine whether a collision between molecules will lead to a chemical reaction?

2.3 Consider the following reaction: Cl(g) + HBr (g) → HCl(g) + Br(g) The reaction has an overall enthalpy change of –66.0 kJ and the activation energy of 7.00 kJ.

2.3.1 What is the activation energy for the reverse reaction?

 2.3.2 Sketch the energy profile for the reverse reaction; and label the diagram.

2.4 The conversion of cyclopropane to propylene has a rate constant k = 1.30 x 10^–6 s –1 at 400^oC and k = 1.10 x 10^–5 s –1 at 430^oC. Calculate the activation energy for the reaction in kJ.

Answer 1

2.1-- Reactant concentration, the physical state of the reactants, and surface area, temperature, and the presence of a catalyst

2.2--Energies of the particles colliding must be equal and they should be in the right orientation.

2.3.1--Reverse reaction energy 66+7=73 kJ