Question

about how long does it take for the reaction to reach equilibrium in this concentration versus time graph?

Answer 1

Reaction to Reach Equilibrium

Firstly the substrate concentration increases the rate of reaction also increases but at a certain limit it will stop to increase by adding up the substrate. By raising the enzyme concentration, the maximum reaction rate considerably improves.

The rate of a chemical reaction increases with respect to the substrate concentration increases. Enzymes can exceedingly promote the rate of a reaction. Enzymes convert saturated when the substrate concentration is high.

Answer 2

Answer: option D. 4.5 seconds.

Explanation:

The equilibrium reaction is H₂O ⇄ H₂ + O₂

The chemical equilibrium is a dynamic one. Two reactions are happening symultaneously: the forward reaction (H₂O → H₂ + O₂) ,to the right, and the reverse reaction (H₂O ← H₂ + O₂), to the left. At equilibrium both reactions have the same rate, which makes that the total, measurable quantity of reactants and products remain constant.

In the figure you see:

• The vertical axis measures concentration.

• The horizontal axis measures time (seconds).

• The two blue lines, the concentrations of H₂ and O₂, become flat (reach a zero slope) between 4 and 5 seconds.

• The red line, the concentration of H₂O, becomes flat, also, between 4 and 5 seconds.

• Hence, the concentrations of the reactant and the products do not change after that time meaning that the reaction has reached the equilibrium at about 4.5 seconds.