Question

is the reaction shown on the graph at equilibrium at t = 5?

Explanation:

Step1: Recall equilibrium definition

A chemical reaction is at equilibrium when the concentrations of reactants (R) and products (P) no longer change with time.

Step2: Analyze the graph at \( t = 5 \)

At \( t = 5 \), the concentration of reactant R (red line) and product P (purple line) are constant (horizontal lines), meaning their concentrations do not change over time.

Answer:

Yes, the reaction is at equilibrium at \( t = 5 \) because the concentrations of reactant (R) and product (P) are constant (not changing with time) at that time.