In a closed system at equilibrium, which of the following statements is true?
AThe concentration of reactants is zero.
BThe rate of the forward reaction is greater than the rate of the reverse reaction.
CThe concentration of products and reactants remains constant.
DThe reaction has completely stopped.
Q2. Which of the following is a characteristic of a system at equilibrium?
AThe system is at its lowest energy state.
BThe system no longer reacts with its surroundings.
CThe system's macroscopic properties remain unchanged.
DThe system has reached maximum entropy.
Q3. According to Le Chatelier's principle, if the concentration of a reactant in a system at equilibrium is increased, what will happen to the position of equilibrium?
AIt will shift towards the products.
BIt will shift towards the reactants.
CIt will remain unchanged.
DIt will shift in a direction that reduces the change.
AThe concentration of reactants is zero.
BThe rate of the forward reaction is greater than the rate of the reverse reaction.
CThe concentration of products and reactants remains constant.
DThe reaction has completely stopped.
Q2. Which of the following is a characteristic of a system at equilibrium?
AThe system is at its lowest energy state.
BThe system no longer reacts with its surroundings.
CThe system's macroscopic properties remain unchanged.
DThe system has reached maximum entropy.
Q3. According to Le Chatelier's principle, if the concentration of a reactant in a system at equilibrium is increased, what will happen to the position of equilibrium?
AIt will shift towards the products.
BIt will shift towards the reactants.
CIt will remain unchanged.
DIt will shift in a direction that reduces the change.