C6H4(OH)2(aq) + H2O2(aq) → C6H4O2(aq) + 2H2O(1) hydroquinone quinone Calculate AHRXN for this reaction from the following data, CLEARLY SHOWING ALL CALCULATIONS: (i) C6H4(OH)2(aq) → C6H4O2(aq) + H2(g) AH = + 177.4 kJ (ii) H2(g) + O2(g) H2O2(aq) AH = – 191.2 kJ -> AH = – 241.8 kJ → H2O(g) → H2O(1) (ii) H2(g) + 1/2 O2(g) AH = – 43.8 kJ (iv) H2O(g) ↑ ↑ ↑ ↑

Introduction to General, Organic and Biochemistry
11th Edition
ISBN:9781285869759
Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Chapter18: Carboxylic Acids
Section: Chapter Questions
Problem 18.54P
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C6H4(OH)2(aq) + H2O2(aq) → C6H4O2(aq) + 2H2O(1)
hydroquinone
quinone
Calculate AHRXN for this reaction from the following data, CLEARLY SHOWING ALL
CALCULATIONS:
(i)
C6H4(OH)2(aq)
→ C6H4O2(aq) + H2(g)
AH = + 177.4 kJ
(ii)
H2(g) + O2(g)
H2O2(aq)
AH = – 191.2 kJ
->
AH = – 241.8 kJ
→ H2O(g)
→ H2O(1)
(ii)
H2(g) + 1/2 O2(g)
AH = – 43.8 kJ
(iv)
H2O(g)
↑ ↑ ↑ ↑
Transcribed Image Text:C6H4(OH)2(aq) + H2O2(aq) → C6H4O2(aq) + 2H2O(1) hydroquinone quinone Calculate AHRXN for this reaction from the following data, CLEARLY SHOWING ALL CALCULATIONS: (i) C6H4(OH)2(aq) → C6H4O2(aq) + H2(g) AH = + 177.4 kJ (ii) H2(g) + O2(g) H2O2(aq) AH = – 191.2 kJ -> AH = – 241.8 kJ → H2O(g) → H2O(1) (ii) H2(g) + 1/2 O2(g) AH = – 43.8 kJ (iv) H2O(g) ↑ ↑ ↑ ↑
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