Multiple Choice
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: H°f[Na2O2(s) ] = -510.9 kJ/mol; H°f[NaOH(aq) ] = -469.2 kJ/mol; H°f[H2O(l) ] = -285.8 kJ/mol)
A) 141.7 kJ
B) 1740 kJ
C) 2900 kJ
D) 3330 kJ
E) 35,400 kJ
Correct Answer:

Verified
Correct Answer:
Verified
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