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Calculate the standard Gibbs energy chan...

Calculate the standard Gibbs energy change for the formation of propane at 298 K:
`3C("graphite") + 4H_(2)(g) to C_(3)H_(8)(g)`
`Delta_(f)H^(@)` for propane, `C_(3)H_(8)(g) = -103.8 kJ mol^(-1)`.
Given : `S_(m)^(0)[C_(3)H_(8)(g)] = 270.2 J K^(-1) "mol"^(-1)`
`S_(m)^(@)("graphite") = 5.70 J K^(-1) "mol"^(-1)`
and `S_(m)^(0)[H_(2)(g)] = 130.7 J K^(-1) "mol"^(-1)`.

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To calculate the standard Gibbs energy change (ΔG°) for the formation of propane (C₃H₈) at 298 K, we will use the following formula: \[ \Delta G° = \Delta H° - T \Delta S° \] ### Step 1: Calculate ΔH° for the reaction ...
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