The Gibbs free energy change for the above reaction at 298 K is . The value of x is [nearest integer]

[Given: ; ; ]

Question

The Gibbs free energy change for the above reaction at 298 K is . The value of x is  [nearest integer]

[Given: ; ; ]

Canvas Classes · Accepted Answer

Strategy:
 Calculate the Gibbs free energy change () for the non-standard reaction by first finding the cell potential () using the Nernst Equation.

Step 1: Find standard potential ()
Anode: Copper (); Cathode: Tin ().

Step 2: Find non-standard potential ()
Reaction quotient .
.

Step 3: Calculate

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