(A) The $pH$ of a solution is defined as $pH = -\log[H^+]$.For a $KOH$ solution,the ionic product of water $(K_w = [H^+][OH^-])$ increases with an inc

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

(A) The $pH$ of a solution is defined as $pH = -\log[H^+]$.For a $KOH$ solution,the ionic product of water $(K_w = [H^+][OH^-])$ increases with an increase in temperature.As $K_w$ increases,the concentration of $[H^+]$ increases,which leads to a decrease in the $pH$ value.Alternatively,$pH + pOH = pK_w$. As temperature increases,$pK_w$ decreases,and since $pOH$ is relatively stable for a strong base,$pH$ must decrease.

Class 11 Chemistry 6-2.Equilibrium-II (Ionic Equilibrium)Water hydrolysis and pH scale

Easy

As the temperature increases,the $pH$ of a $KOH$ solution

A
Will decrease
B
Will increase
C
Remains constant
D
Depends upon concentration of $KOH$ solution

Explore More

Browse All

Question Bank

All Subjects

Class 11 Questions

Class 11

Chemistry Questions

Chapter

6-2.Equilibrium-II (Ionic Equilibrium)

Subtopic

Water hydrolysis and pH scale

If the $pH$ of a solution is $4.0$ at $25\,^{\circ}C,$ its $pOH$ would be $(K_w = 10^{-14})$

Medium

View Solution

At $100\, ^oC$,the $K_w$ of water is $55$ times its value at $25\, ^oC$. What will be the $pH$ of a neutral solution at this temperature? $(\log 55 = 1.74)$

DifficultNEET 2013

View Solution

At $25^{\circ} C$,the ${H_3}{O^+}$ concentration of a solution is $1.0 \times 10^{-10} \ M$. What is the $pOH$ value of the solution (in $.0$)?

Medium

View Solution

At $80\,^{\circ}C,$ distilled water has $[H_3O^{+}]$ concentration equal to $1 \times 10^{-6} \, mol/L.$ The value of $K_w$ at this temperature will be

MediumAIPMT 1994

View Solution

The $[H^{+}]$ in lemon juice is found to be $0.0063 \ M$. What is the $pH$ value of lemon juice? $(\log 6.3 = 0.7993)$

DifficultMHT CET 2022

View Solution

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial

For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free

For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo

As the temperature increases,the $pH$ of a $KOH$ solution

Similar Questions

If the $pH$ of a solution is $4.0$ at $25\,^{\circ}C,$ its $pOH$ would be $(K_w = 10^{-14})$

At $100\, ^oC$,the $K_w$ of water is $55$ times its value at $25\, ^oC$. What will be the $pH$ of a neutral solution at this temperature? $(\log 55 = 1.74)$

At $25^{\circ} C$,the ${H_3}{O^+}$ concentration of a solution is $1.0 \times 10^{-10} \ M$. What is the $pOH$ value of the solution (in $.0$)?

At $80\,^{\circ}C,$ distilled water has $[H_3O^{+}]$ concentration equal to $1 \times 10^{-6} \, mol/L.$ The value of $K_w$ at this temperature will be

The $[H^{+}]$ in lemon juice is found to be $0.0063 \ M$. What is the $pH$ value of lemon juice? $(\log 6.3 = 0.7993)$

Vedclass Test Series

Exam Paper Generator

Online Exam Module