A rigid 1.0 L vessel contains an equilibrium mixture of \(\text{X(g)}\) and \(\text{Y(g)}\) according to the following balanced equation:

\(\text{X(g)} \rightleftharpoons 2\text{Y(g)}\)

At time \(t_1\), additional \(\text{Y(g)}\) is rapidly injected into the vessel at constant temperature. The concentration versus time graph for the system is shown below. Based on the graph, which statement correctly describes and explains the behavior of the system as it approaches a new equilibrium between \(t_1\) and \(t_2\)?