The amphoteric reaction between two water molecules is endothermic, which means

Question

The amphoteric reaction between two water molecules is endothermic, which means that this reaction requires the input of energy in order to proceed: Energy + H_2O + H_2O rightarrow + H_3O^+ + OH^- The warmer the temperature of the water, the more thermal energy is available for this reaction, and the more hydronium and hydroxide ions arc formed. Based on this information, should the value o be expected to increase, decrease, or stay the same with increasing temperature ? The value of K_w will stay the same, since it is a constant. The value of K_w will decrease, since there are more hydronium ions than hydroxide ions. The value of K_w will increase since the rise in temperature allows for a higher concentration of both tons. The value of K_w will decrease since there are more hydroxide ions than hydronium ions.

Explanation / Answer

Kw is the ionization constant of water. With increase in temperature, the forward reaction is favored which means that more and more H+ and OH- ions are produced. Thus Kw of water will increase.

Answer is C

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.