1 Estimate H for the reaction using bond dissociationenergies Give ...

1 Let us first make a simple table Bond type No of bond Bond e ....

#1. Estimate Î”H for the reaction using bond dissociation energies. Give your answer in kcal. C6H12O6...

Free

70.2K

Verified Solution

Question

Chemistry

#1. Estimate Î”H for the reaction using bond dissociationenergies. Give your answer in kcal. C6H12O6 has five Câˆ’C bonds,seven Câˆ’H bonds, seven Câˆ’O bonds, and five Oâˆ’H bonds.
#2. Is the reaction exothermic or endothermic?
#3. The following equation shows the conversion of aluminumoxide (from the ore bauxite) to aluminum:
2Al2O3(s)â†’4Al(s)+3O2(g),Â Â
Î”H = +801.0 kcal
----> a. Is the reactionexothermic or endothermic?

Answer & Explanation Solved by verified expert

4.0 Ratings (755 Votes)

#1 Let us first make a simple table,

Bond typeÂ Â No. of bondÂ Â Â Bond energy(kJ/mol)Â Â total bond energy(kJ/mol)Â Â Â

C-CÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 5Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 347Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 1735Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â

Â Â O-HÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 5Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 464Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 2320

Â Â C-HÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 7Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 414Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 2898

C-OÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 5Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 358Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 1790

C=OÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 1Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 803Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 803

----------------------------------------------------------------------------------

Total Bond Energy for Glucose = 9546 kJ/mol = 2281.55 kcal/mol

#3 The given reaction is endothermic. deltaH is +ve, means heat is taken up by the reaction.

Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:

Unlimited Question Access with detailed Answers
Zin AI - 3 Million Words
10 Dall-E 3 Images
20 Plot Generations
Conversation with Dialogue Memory
No Ads, Ever!
Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!

Become a Member