AP EAPCET 08-Jul-2022 Shift 1 Paper

pH of an acidic buffer is given by equation
pH=pKa+log

[Salt]

[Acid]

As the temperature increases the solubility also increases. So, more salt get formed. Therefore, concentration of salt increases which means
log

[Salt]

[Acid]

value increases.
So, overall value of Ph increases.