Statement $\mathbf{A}: \mathrm{pH}$ of buffer increases with increasing temperature. Statement B : The value…
Statement $\mathbf{A}: \mathrm{pH}$ of buffer increases with increasing temperature.
Statement B : The value of $K_W$ of water decreases with decreasing temperature.
$\mathrm{A}$ is correct, but $\mathrm{B}$ is wrong.
Both $\mathrm{A}$ and $\mathrm{B}$ are correct
Both $\mathrm{A}$ and $\mathrm{B}$ are wrong
$\mathrm{A}$ is wrong but $\mathrm{B}$ is correct
Solution
Dissociation of electrolytes increases with increase in temperature: So, $\mathrm{K}_{\mathrm{w}}=\left[\mathrm{H}^{+}ight]\left[\mathrm{OH}^{-}ight]$also increases.
$\therefore \quad$ pH of the buffer solution decreases.