I have 2 questions though they are related in nature (for both there can be more
ID: 507872 • Letter: I
Question
I have 2 questions though they are related in nature (for both there can be more than one answer)
1. Which of the following best describes dynamic equilibrium?
A. When a chemical reaction is reversible.
B. A reversible chemical reaction in which the net change of reactant and product are equal.
C. A chemical reaction in which all of the reactant has been consumed and remains at 0 M.
D. A chemical reaction in which large amounts of heat energy are given off.
For this one I feel as though both A and B could be correct, but I am not completely sure if A is technically correct.
2. Why is it critical that the binding of oxygen by hemoglobin undergo equilibrium?
A. If this reaction were non-reversible hemoglobin would not be able to react with oxygen.
B. If this reaction were non-reversible hemoglobin would not be able to release oxygen to tissues and cells.
C. If this reaction were non-reversible hemoglobin would be forced to react with dissolved nitrogen in the blood.
D. All of these are correct.
A. When a chemical reaction is reversible.
B. A reversible chemical reaction in which the net change of reactant and product are equal.
C. A chemical reaction in which all of the reactant has been consumed and remains at 0 M.
D. A chemical reaction in which large amounts of heat energy are given off.
For this one I feel as though both A and B could be correct, but I am not completely sure if A is technically correct.
Explanation / Answer
1. A. When a chemical reaction is reversible.
B. A reversible chemical reaction in which the net change of reactant and product are equal.
Dynamic equlibrium happens in a reverisible reaction where in the ratio of the reactants to the products is equal. So although some of the reactants are converted to products, at the same time some products are converted back to reactants. So there is no net change in the concentrations of the species involved in the reaction.
2. B. If this reaction were non-reversible hemoglobin would not be able to release oxygen to tissues and cells.
The uptake of oxygen from the lungs and the release of it at the tissues is due to the reversible nature of oxygen binding with hemoglobin. If the reaction had been non reversible hemoglobin would not be able to release the oxygen to the tissues.
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