Liquid Hydrogen Peroxide Is an Oxidizing Agent in Many Rocket

question 66

Multiple Choice

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

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