CGH4(OH),(aq) + H,O2(aq) → C,H,02(aq) + 2H,0() Calculate AH for this reaction from the following data: C,H4(OH),(aq) –→ CgH,02(aq) + H,(g) AH=177.4 kJ H2(g) + O2(g) → H2O2(aq) AH=-191.2 kJ H2(g) + 0,(g) –→ H,0(g) AH=-241.8 kJ H20(g) – H,0(D AH=-43.8 kJ

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The bombardier beetle uses an explosive discharge as a defensive measure. The chemical reaction involved is the oxidation of hydroquinone by hydrogen peroxide to produce quinone and water:

CGH4(OH),(aq) + H,O2(aq) → C,H,02(aq) + 2H,0()
Calculate AH for this reaction from the following data:
C,H4(OH),(aq) –→ CgH,02(aq) + H,(g) AH=177.4 kJ
H2(g) + O2(g) → H2O2(aq) AH=-191.2 kJ
H2(g) + 0,(g) –→ H,0(g) AH=-241.8 kJ
H20(g) – H,0(D AH=-43.8 kJ
Transcribed Image Text:CGH4(OH),(aq) + H,O2(aq) → C,H,02(aq) + 2H,0() Calculate AH for this reaction from the following data: C,H4(OH),(aq) –→ CgH,02(aq) + H,(g) AH=177.4 kJ H2(g) + O2(g) → H2O2(aq) AH=-191.2 kJ H2(g) + 0,(g) –→ H,0(g) AH=-241.8 kJ H20(g) – H,0(D AH=-43.8 kJ
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