How are temperature change and pH of any chemical reagent related?

Answer 1

Depends on the nature of the reagent.

Answer 2

The rate of dissociation of a weak organic base/acid is favored by high temperature. So increase in temperature increases the ionization and decreases the pH in case of acids, and increases in case of bases.

For compounds like water, the dissociation also increases and so though the number of H+ and OH- increases to the same extent, the overall concentration of H+ increases and so pH decreases(Note in this case, pOH also decreases to the same extent)

For acidic or basic gases dissolved in water, the trend is reversed. Increase in temperature decreases their solubility. Thus in case of acidic gases the pH increases and in case of basic gases the pH decreases when we increase the temperature.

Answer 3

I think if temp drops, pH goes up. Simple demo, put some vinegar in a cup, put some baking soda in it. feel the cup as you swirl it, the cup should feel cool and the pH obvioulsy goes up or becomes more basic. 1-6 acid, 7 neutral, 8-14 basic.

Answer 4

temperature is inversely related to the square root of the pH divided by the cosine of 30 times the derivative of pi