Q15 / 160 · TS EAMCET 2003 · Chemistry

If the ionic product of water $\left(K_w\right)$ is $1.96 \times 10^{-14}$ at $35^{\circ} \mathrm{C}$, what is its value at $10^{\circ} \mathrm{C}$ ?

  • A
    $1.96 \times 10^{-14}$
  • B
    $3.92 \times 10^{-14}$
  • Correct answer
    C
    $2.95 \times 10^{-15}$
  • D
    $1.96 \times 10^{-13}$

Solution

Ionic product $\propto$ Temperature So, if the temperature is decreased, the value of ionic product will definitely be less than before.

Hence, the correct answer is option: 'C'.

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