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Chemistry LibreTexts

Thermodynamics (Worksheet)

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Work in groups on these problems. You should try to answer the questions without referring to your textbook. If you get stuck, try asking another group for help.

Using the thermodynamic tables, calculate \(\Delta S^{\circ}\) and \(\Delta G^{\circ}\) for the following reactions using:

\[\Delta S^{\circ} = \sum S^{\circ}_{products} - \sum S^{\circ}_{reactants}\]

and

\[\Delta G^{\circ}_{rxn} = \sum \Delta G^{\circ}_{products} - \sum \Delta G^{\circ}_{reactants}\]
 

  1. \(CH_{4\,(g)} + 2O_{2\,(g)} \rightarrow CO_{2\,(g)} + 2H_2O_{(l)}\)
  2. \(2MgO_{(s)} \rightarrow 2Mg_{(s)} + O_{2\,(g)}\)