Solid NaHCO₃ Is Heated to 90°C

question 134

Multiple Choice

Solid NaHCO₃ is heated to 90°C.At equilibrium the total pressure of the gases produced is 0.545 atm.Calculate ΔG° at 90°C for the reaction 2 NaHCO₃(s) ⇌ Na₂CO₃(s) + H₂O(g) + CO₂(g) .

• A)-7.85 kJ
• B)-3.67 kJ
• C)+3.67 kJ
• D)+7.85 kJ

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