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Hydrogen Peroxide Decomposes to Water and Oxygen at Constant Pressure

Question 121

Multiple Choice

Hydrogen peroxide decomposes to water and oxygen at constant pressure by the following reaction: 2 H2O2(l) → 2 H2O(l) + O2(g) ΔH = -196 kJ
Calculate the value of q (kJ) in this exothermic reaction when 4.60 g of hydrogen peroxide decomposes at constant pressure.


A) -26.5 kJ
B) -13.3 kJ
C) -0.0189 kJ
D) 1.25 kJ
E) -2.65 × 104 kJ

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