Sodium Carbonate Can Be Made by Heating Sodium Bicarbonate: 2NaHCO₃(s) $\rarr$

question 96

Multiple Choice

Sodium carbonate can be made by heating sodium bicarbonate: 2NaHCO₃(s) $\rarr$ Na₂CO₃(s) + CO₂(g) + H₂O(g)
Given that $\Delta$ H° = 128.9 kJ/mol and $\Delta$ G° = 33.1 kJ/mol at 25°C, above what minimum temperature will the reaction become spontaneous under standard state conditions?

• A)0.4 K
• B)3.9 K
• C)321 K
• D)401 K
• E)525 K

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