Liquid hydrogen peroxide is an oxidizing agent in many rocket fuel mixtures because it releases oxygen gas on decomposition as shown below. 2 H₂ O₂ (
) 2 H₂ O (
) + O₂(g) D H rxn = - 196 kJ How much heat is released when 25.0 grams of H₂ O₂ decomposes?
Molar Mass(H₂ O₂) = 34.01 g/mol
A) - 533 kJ
B) - 288 kJ
C) - 144 kJ
D) - 133 kJ
E) - 72.0 kJ
Correct Answer:
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