By how much will the potential of half cell cu+2/Cu change, if the solution is diluted to 100 times at 298 K?

(1) Increases by 59 mV

(2) Decreases by 59 mV

(3) Increases by 29.5 mv

(4) Decreases by 29.5 mV

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Solution

If the solution is diluted 100 times, then its concentration decreases by 100 times. Thats why the concentration of Cu2+ is multiplied by 0.01 is i.e 1/100.
Hope you understood. cheers

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