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
Anna71 [15]
3 years ago
14

A fuel cell designed to react grain alcohol with oxygen has the following net reaction:

Chemistry
1 answer:
sertanlavr [38]3 years ago
8 0

Answer:

b. E = 2,28V

Explanation:

The maximum work is the same than ΔG. As ΔG could be written as:

ΔG = nFE <em>(1)</em>

Where n is moles of electrons transferred, F is faraday constant (96485 J/Vmol) and E is the voltage of the cell.

For the reaction:

CH₃OH(l) + ³/₂O₂(g) → CO₂(g) + 2H₂O(l)

The oxidation state of C in CH₃OH is -2 but in CO₂ is +4, that means transferred electrons are +4 - -2 = <em>6e⁻</em>

Replacing in (1):

1320x10³ J = 6mol e⁻×96485J/Vmol×E

<em>E = 2,28V</em>

<em></em>

I hope it helps!

You might be interested in
What has covalent bonds
trapecia [35]

Answer:

Anything that shares electrons.

Explanation: This means they don't transfer electrons.

6 0
2 years ago
What is true of intercellular signals that do not go through direct connections between cells, such as plasmodesmata?
Ronch [10]

I believe that what happens here is that when those cells carrying those intercellular signals do no pass through the connections, actually the signal is passed through or are transferred to adjacent cells for signal transmission, hence the answer is:

<span>B</span>

6 0
3 years ago
Read 2 more answers
What are all the intermolecular forces present in a sample of BrF?
yuradex [85]

Answer:

dipole-dipole

Explanation:

Intermolecular forces exists between the molecules of a substance in a particular state of matter.

The type of intermolecular forces present in  a substance is determined by the electronegativity difference between the atoms that compose the substance.

There is a non zero electronegativity difference  between Br and F hence the molecule is polar and the intermolecular forces between the molecules of BrF are dipole-dipole forces.

4 0
2 years ago
What is the process for extracting oils
OLEGan [10]

Answer:

Oil is extracted by three general methods: rendering, used with animal products and oleaginous fruits; mechanical pressing, for oil-bearing seeds and nuts; and extracting with volatile solvents, employed in large-scale operations for a more complete extraction than is possible with pressing.

Explanation:

4 0
2 years ago
Which of the following statements about protons are true?
attashe74 [19]
The second on it true
4 0
3 years ago
Read 2 more answers
Other questions:
  • A solution of water (kb=0.512 ∘c/m) and glucose boils at 103.56 ∘c. what is the molal concentration of glucose in this solution?
    10·2 answers
  • Suppose a bicycle was coasting on a level surface, and there was no friction. What would happen to the bicycle? A. It would spee
    14·2 answers
  • A student mixes 86.3 g of water at 50.3°c with 60.9 g of water at 16.7°c in an insulated flask. what is the final temperature of
    11·1 answer
  • What is an example of ionic compound?<br><br>A.co2<br>B.Kcl<br>C.H2o<br>D.Co
    12·1 answer
  • Which of the following statements is TRUE? Question 1 options: There is a "heat tax" for every energy transaction. A spontaneous
    15·1 answer
  • Which of the following geological features can form at a subduction zone?
    13·1 answer
  • Which are the MOST LIKELY products of the reaction between sodium metal and chlorine gas?
    15·1 answer
  • Whats the powerhouse of the cell?
    5·2 answers
  • Chemistry: how does temperature relate to kinetic energy? pls answer in a short and easy way :D
    14·2 answers
  • Which stage in the life cycle of a plant is represented in this picture?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!