As the temperature increases, the equilibrium constant for the autoionization of water, $K_w$, increases. Based on this fact, a sample of pure water at 50 °C will have a pH _____, and [H+] will be _____ [OH].
greater than 7, greater than
less than 7, less than
greater than 7, equal to
less than 7, equal to
equal to 7, equal to
Submit Previous Answers Request Answer
Incorrect; Try Again; 5 attempts remaining
If $K_w$ increases, the concentration of both [H+] and [OH-] will increase, and because pH = -log[H+], the pH will be smaller than the value of 7.00 seen for neutral water at 25 °C.