Solid Sodium Peroxide (Na₂O₂)reacts with Liquid Water Yielding Aqueous Sodium $\Delta$

Solid sodium peroxide (Na₂O₂) reacts with liquid water yielding aqueous sodium hydroxide and oxygen gas. How much heat is released when 250.0 L of oxygen gas is produced from the reaction of sodium peroxide and water if the reaction is carried out in an open container at 1.000 atm pressure and 25°C? (Given: $\Delta$ H°_f[Na₂O₂(s) ] = -510.9 kJ/mol; $\Delta$ H°_f[NaOH(aq) ] = -469.2 kJ/mol; $\Delta$ H°_f[H₂O(l) ] = -285.8 kJ/mol)

A) 35,400 kJ
B) 1740 kJ
C) 141.7 kJ
D) 3330 kJ
E) 2900 kJ

Correct Answer:

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