E. The reaction between A and B is product favored.
Explanation:
A. The reaction reaches equilibrium at 2.75 seconds. (false)
At 2.75 seconds the concentration of reactants are equal to the concentration of products. The equilibrium is reached at 14.9 seconds.
B. The amount of reactant is greater than the amount of product at equilibrium. (false)
At equilibrium, 14.9 seconds, the products (blue line) have a higher concentration than the reactants (red line).
C. The reaction coverts all the products back into reactants. (false)
At equilibrium the chemical reaction does not stop, and the reactants are converted to products and products covered to reactants. However not all the products are converted back to reactants because the concentration of products (blue line) will remain constant after the reach of equilibrium.
D. The amount of reactants and products is equal at 14 seconds. (false)
The amount of reactants and products is equal at 2.75 seconds.
E. The reaction between A and B is product favored. (true)
We say that the reaction is product favored because at the equilibrium the concentration of the products (blue line) is greater than the concentration of reactants (red line).
Learn more about:
chemical equilibrium
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