Question

For pure water both pH and pOH decrease with rise in temperature

• A. True
• B. False

Answer 1

The correct option is A True

$pH=-log\left[H^{+}\right]$

Also for water, $\left[H^{+}\right]\left[O{H}^{-}\right]={10}^{-14}$

$pH+pOH=14$

As we increase temp. no of ions will increases and both pH and pOH decrease with rise in temperature.