Identify the incorrect statement from the following options:

Explanation

Option A is true because batch reactors usually show variations in temperature, pressure, and composition as the reaction proceeds. Option B correctly describes semi-batch reactors where one reactant is charged at the start and the other fed continuously. Option C is false since continuous flow reactors, especially when well stirred, maintain uniform concentration throughout the vessel. Option D accurately states that reactants and products flow continuously in continuous flow reactors.