chemistry homework 4 questions

1. For the reaction A  B, ΔH = -25kJ. Rewrite this equation to show the 25kJ properly
on the reactant or product side.

2. If C + 30kJ  D, what is ΔH for the reaction? Which have more energy, the
reactants or the products?

3. What happens to the shape of the KE distribution curve for a reacting species
a) as the reactant is used up at a constant temperature?
b) if the temperature is decreased?
c) if the surface area of a reactant is increased?
d) if the pressure of the reactant is increased with no change in temperature?

4. Draw PE diagrams for each of the following:
a) fast exothermic reaction.
b) slow exothermic reaction.
c) fast endothermic reaction.
d) slow endothermic reaction.

 
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