## Sn (s white) + 2 CuCl (aq) → SnCl2 (aq) + 2 Cu (s)

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## Reaction Type:

Single displacement/Oxidation-reduction

## Stoichiometry

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 Sn             Mass: g CuCl           Mass: g or Solution Volume: mL of Concentration: mol/L SnCl2          Mass: g Cu             Mass: g Heat Released: kJ

## Enthalpy of Reaction

[1ΔHf(SnCl2 (aq)) + 2ΔHf(Cu (s))] - [1ΔHf(Sn (s white)) + 2ΔHf(CuCl (aq))]
[1(-343.1) + 2(0)] - [1(0) + 2(-95.48)] = -152.14 kJ
-152.14 kJ     (exothermic)

## Entropy Change

[1ΔSf(SnCl2 (aq)) + 2ΔSf(Cu (s))] - [1ΔSf(Sn (s white)) + 2ΔSf(CuCl (aq))]
[1(95.96) + 2(33.15)] - [1(51.55) + 2(97.06)] = -83.41 J/K
-83.41 J/K     (decrease in entropy)

## Free Energy of Reaction (at 298.15 K)

From ΔGf° values:
[1ΔGf(SnCl2 (aq)) + 2ΔGf(Cu (s))] - [1ΔGf(Sn (s white)) + 2ΔGf(CuCl (aq))]
[1(-289.7) + 2(0)] - [1(0) + 2(-81.25)] = -127.2 kJ
-127.20 kJ     (spontaneous)

From ΔG = ΔH - TΔS:
-127.27 kJ     (spontaneous)

## Equilibrium Constant, K (at 298.15 K)

1.9307046686e+022
This process is favorable at 25°C.