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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 Δ\Delta H° = 128.9 kJ/mol and Δ\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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