Ionic EquilibriumHard
Question
For pure water
Options
A.pH increases and pOH decreases with rise in temperature
B.pH decreases and pOH increases with rise in temperature
C.Both pH and pOH increase with rise in temperature
D.Both pH and pOH decrease with rise in temperature
Solution
On heating pure water the value of ionic product of water increases i.e., Kw = 10-14 at 25oC and at 100oC Kw = 10-12. Thus pH and pOH both becomes 6 at 100oC (pH and pOH = 7 at 25oC).
Create a free account to view solution
View Solution FreeMore Ionic Equilibrium Questions
H3PO4 is a weak triprotic acid; approximate pH of 0.1 M Na2HPO4 (aq.) is calculated by :-...Ka for formic acid and acetic acid are 2.1 × 10-4 and 1.1 × 10-5 respectively. The relative strenth of acids i...Salect the correct statement -...Fear or excitement, generally cause on to breathe rapidly and it results in the decrease of CO2 concentration in blood. ...Which of the following mixtures will act as buffer ?...