This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Suppose reaction A involves the making of bonds and 22.5 J of energy, reaction B involves the ... (Read 149 times)

Brittanyd9008

  • Hero Member
  • *****
  • Posts: 500
on: Jul 28, 2018
Suppose reaction A involves the making of bonds and 22.5 J of energy, reaction B involves the breaking of bonds and 40.0 J of energy, and reaction C involves the making of bonds and 125.0 J of energy.
 
  What is the overall A + B + C reaction energy? Is this an exothermic or an endothermic reaction? Explain.

Question 2

Ozone is an unnatural form of oxygen.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

amit

  • Sr. Member
  • ****
  • Posts: 364
Reply #1 on: Jul 28, 2018
Answer to Question 1

In making bonds, the total energy release was 22.5 J + 125 J = 147.5 J. This is
more than the energy supplied to break bonds, 40.0 J. Overall in this reaction, bonds are
made and net energy is supplied by the chemical system to the outside. This is an
exothermic reaction, because energy of 107.5 J = 147.5 J - 40.0 J can be extracted from
the system when the reaction occurs.

Answer to Question 2

It would be hard to call it unnatural, because it does occur in nature without
any human interference. It is true, however, that humans can increase or decrease the amount
of ozone compared to what would have been the case. in nature free of humans' effects


Brittanyd9008

  • Hero Member
  • *****
  • Posts: 500
Reply #2 on: Jul 28, 2018
Thank you!


amit

  • Sr. Member
  • ****
  • Posts: 364
Reply #3 on: Jul 28, 2018
Always glad to help...


« previous next »
 

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.

Model for evidence-based clinical decision making. Model for evidence-based clinical decision making.
Feast-making spoon (Wunkirmian). Liberia/IvoryCoast. Feast-making spoon (Wunkirmian). Liberia/IvoryCoast.
Metabolic pathways involved in lipolysis, the breakdown of fats (triglycerides) for energy. Metabolic pathways involved in lipolysis, the breakdown of fats (triglycerides) for energy.
Two epigenetic mechanisms. Histone remodeling involves modifications to a histone protein (around ... Two epigenetic mechanisms. Histone remodeling involves modifications to a histone protein (around ...
(c) A photograph of a hemagglutination reaction. In the tube labeled 0, there is no agglutination, ... (c) A photograph of a hemagglutination reaction. In the tube labeled 0, there is no agglutination, ...
Reaction mechanism for fructose-1,6-bisphosphate aldolase Reaction mechanism for fructose-1,6-bisphosphate aldolase
Video: Introduction to Eating Disorders

For a complete list of videos, visit our video library