Question

When the forward and reverse paths of a change occur at the same rate,

Answer 1

The correct answer is option B. When the forward and reverse paths of a change occur at the same rate, the system is in equilibrium specifically in dynamic equilibrium. Dynamic equilibrium is the balance in a process that is continuing. It is achieved in a reaction when the forward rate of reaction and the backward rate of reaction is at the same value or equal.

Answer 2

Answer:

b. the system is in equilibrium.

Explanation:

Chemical equilibrium occurs when any reaction is reversible, in which there are two possible reactions, one forward (where reactants turn into products) and a reverse one (where products turn reactants). These reactions have the same velocity.

In this state, the rates of forward and reverse reactions are equal, and concentrations of reagents and products remain unchanged.

The velocities within a reversible reaction (in equilibrium) can be represented as follows:

A + B ⇄ C + D

However, this state of equilibrium is vulnerable to some factors, such as changes in pressure, temperature and addition or withdrawal of one or more substances from the system.

These may change one of these velocities and consequently, modify the concentrations of reagents and/or products, causing an equilibrium shift.