What does the value of K_w say about the extent to which water molecule react with themselves?

Question

Quizplus · Accepted Answer

K_w is the ion product constant of water, which represents the extent to which water molecules react with themselves to form ions. The value of K_w is very small, indicating that only a small fraction of water molecules undergo such a reaction. Therefore, Choice B is the best answer. Choice A is incorrect because an increase in K_w would indicate a larger extent of ionization, not a smaller one. Choice C is incorrect because the rate of self-ionization of water is constant only under specific conditions, such as constant temperature and pressure. Choice D is incorrect because the addition of an acid to water would not directly affect the value of K_w, although it would affect the concentration of H+ and OH- ions in the solution via the acid-base equilibrium.

What Does the Value of Kw Say About the Extent

What Does the Value of K_w Say About the Extent