1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
denis23 [38]
3 years ago
13

What is the overall enthalpy of reaction for the equation shown below?

Chemistry
1 answer:
Rudiy273 years ago
4 0

Answer:

ΔH₁₂ = -867.2 Kj

Explanation:

Find enthalpy for 3H₂ + O₃ => 3H₂O given ...

2H₂ + O₂ => 2H₂O      ΔH₁ = -483.6 Kj

        3O₂ => 2O₃        ΔH₂ = + 284.6 Kj

_____________________________

3(2H₂ + O₂ => 2H₂O) => 6H₂ + 3O₂ => 6H₂O       (multiply by 3 to cancel O₂)

6H₂ + 3O₂ => 6H₂O        ΔH₁ = 3(-483.6 Kj) = -1450.6Kj

          2O₃ => 3O₂           ΔH₂ = -284.6Kj              (reverse rxn to cancel O₂)

_______________________________

6H₂ + 2O₃ => 6H₂O         ΔH₁₂ = -1735.2 Kj       (Net Reaction - not reduced)

________________________________

divide by 2 => target equation (Net Reaction - reduced)

3H₂ + O₃ => 3H₂O            ΔH₁₂ = (-1735.2/2) Kj = -867.2 Kj    

You might be interested in
Which units can be used to measure length or distance? Check all that apply.
motikmotik

Answer:

<u>M</u><u>eter,</u><u> </u><u>kilometer </u><u>&</u><u> </u><u>inch </u>- used to measure length or distance.

8 0
2 years ago
Part c
algol13

Distilling ocean water would be a good solution to meet this community's water needs because it will prevent some water borne diseases such as cholera, diarrhea, typhoid etc.

<h3>Importance of water distillation</h3>

Water Distillation Systems has several advantages and some of the advantages include;

  • It removes waterborne biological contaminants such as bacteria, viruses, organic and inorganic chemicals, heavy metals, etc
  • It makes the water fit for consumption

Thus, distilling ocean water would be a good solution to meet this community's water needs because it will prevent some water borne diseases such as cholera, diarrhea, typhoid etc.

Learn more about water distillation here: brainly.com/question/3166914

#SPJ1

6 0
2 years ago
What is wosutah unsrcambled
horsena [70]

Answer:

Washout?? Outwash??

Explanation:

Girl what-

3 0
3 years ago
What intermolecular forces occur between two methane molecules?
nikklg [1K]
<span><span>Dipole-dipole interactions , example: ammoni </span><span>forces, example: methane, CH4</span><span>Hydrogen bonding example: water, H2O </span></span>
4 0
3 years ago
Which of the following observations would indicate that a material is a pure substance?
Ira Lisetskai [31]
<span>The answer to the question is the option C. it cannot be physically broken down into different types of atoms. This means that the material is an element, which is a pure substance. Because an element is a pure substance that is formed by one only type of atoms. For example, gold is an element and all its atoms are of the same type. That is also true for any of the 118 elements of the periodic table. Compounds (other kind of pure substances) can be broken down into molecules (which contain different kind of atoms, but always in the same proportion) and mixtures (non pure substances) have different kind of substances.</span>
6 0
3 years ago
Read 2 more answers
Other questions:
  • A characteristic feature of any form of chromatography is the ________.a. calculation of an Rf value for the molecules separated
    13·1 answer
  • According to its nutrition label, orange soda contains 49g of sugar per 355 ml serving. if the density of the beverage is 1.043
    11·1 answer
  • Is 1000g same as 1cm3
    11·1 answer
  • Hi All,
    14·1 answer
  • Which of the following is an example of representative money?
    8·1 answer
  • A 28.5 gram piece of iron is added to a graduated cylinder containing 45.5 mL of water. The water in the cylinder rises to the 4
    15·1 answer
  • Liquid n-pentane and liquid n-octane are mixed to form a stream flowing at a rate of 1,496.5 lbm/hr. An in-line density measurem
    9·1 answer
  • Identify the Lewis acid in this balanced equation: SnCl4 + 2Cl− → SnCl62−
    9·2 answers
  • What are three examples of matter you can see where you are right now. Thanks for the help everyone!
    15·2 answers
  • Put the following type of radiations in order of increasing energy: red, radio, UV, infrared, blue, and x-ray
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!