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
Sholpan [36]
3 years ago
12

A hydrogen fuel cell is an electrochemical reactor in which oxygen and hydrogen gas are reacted to produce energy. Rather than c

ombusting hydrogen in the presence of oxygen, the overall reaction (1/2) O2 H2 → H2O is actually carried out as two `half-reactions’ occurring at separate electrodes. To complete the reaction, this forces electrons to pass through an external circuit from one electrode to the other, and this current can be used to do work; e.g., by driving a motor. Typical operating conditions for a solid-oxide fuel cell are 500-900 C and 5-15 bar. Consider a fuel cell in which a pure oxygen stream and a pure hydrogen stream enter at 11 bar and 700 C with stoichiometric flowrates. Assume that these reactants are consumed completely, and that the water generated by the reaction leaves in a third stream at the same T and P. Assume that the fuel cell operates at steady-state with a uniform temperature of 700 C. a) Write simplified first and
Chemistry
1 answer:
Contact [7]3 years ago
6 0

Answer:

(d) Why is the fuel cell in Question (c) described as an alkaline fuel cell? (e) Another type of fuel cell uses methanol instead of hydrogen.

Explanation:

You might be interested in
NaClO3 &gt; NaCl + O2 <br> Balance
tiny-mole [99]

Answer:

Balancing Strategies: To balance this reaction it is best to get the Oxygen atoms on the reactant side of the equation to an even number. Once this is done everything else falls into place. Put a "2" in front of the NaClO3. Change the coefficient in front of the O2.

6 0
2 years ago
When KOH dissolved in ethanol, what is the intermolecular attraction between OH- ions and C2H5OH molecules
mezya [45]
Lon-dipole will be your answer
5 0
2 years ago
In 1860, Chemists could make which of the following statements about the known chemical elements?
LenKa [72]

Answer:

b. Some had similar properties

3 0
3 years ago
If oxygen is removed from a sample of air as iron rust, what happens to the particle pressure of oxygen in the air?
klasskru [66]

Answer : It increases

Rusting is where oxygen binds to iron and forms iron oxide.

So once iron rusts, there is oxygen, just not in air; it's in the iron oxide.


All reactions are reversible, albeit at different rates (the "irreversible" ones are still reversible, but much slower given that they take so much collision luck and energy.

5 0
2 years ago
Determine the molarity for each of the following Solution: 98.0 of phosphoric acids H3PO4 in 1.00L of Solution.​
Rufina [12.5K]

The molarity of the solution is 0.01.

Brainliest?

8 0
2 years ago
Other questions:
  • What is the means by which atoms form chemical bonds?
    14·1 answer
  • In which of the following is the solution concentration expressed in percent by volume
    14·2 answers
  • If a solution contains 1 x 106 hb molecules, how many o2 binding sites are available? if the solution of hb is 50% saturated wit
    15·1 answer
  • Suppose you have been given the task of distilling a mixture of hexane + toluene. Pure hexane has a refractive index of 1.375 an
    15·1 answer
  • 21-B. Mn was used as an internal standard for measuring Fe by atomic absorption. A standard mixture containing 2.00 mg Mn/mL and
    9·2 answers
  • The difference between air temperatures over water and over
    9·1 answer
  • Please answer this thanks and have a great day! Xoxo!
    13·2 answers
  • a neutral atom is bombarded with sufficient energy that an electron is liberated. the result is called
    14·1 answer
  • Which transfers thermal energy in the same way the Suns energy is transferred to Earth?
    12·1 answer
  • Why doesn’t the addition of an acid-base indicator affect the pH of the test solution?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!