How Much Energy Is Released in Hydrogen Formation?

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Discussion Overview

The discussion revolves around the energy released during the formation of hydrogen and hydroxide ions in the context of using hydrogen as a fuel, particularly in internal combustion engines. Participants explore the chemical reactions involved, the conditions under which they occur, and the calculations necessary to determine energy changes.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Mathematical reasoning

Main Points Raised

  • One participant seeks to determine the energy released during hydrogen formation, specifically in the context of high-temperature conditions typical of internal combustion engines.
  • Another participant questions the clarity of the initial query, asking for specifics about the chemical reaction and conditions, such as temperature and pressure.
  • A participant mentions that the Gibbs Free Energy change should be calculated to find the maximum work the reaction can perform.
  • There is a discussion about the type of hydroxide salt that might form, with a participant emphasizing that hydroxide ions require a cation for balance.
  • One participant describes compressing oxygen to high temperatures and adding hydrogen, suggesting that hydroxide ions will form, but acknowledges that balancing the reaction is not a concern for them.
  • Another participant challenges the assumption that hydroxide ions will form instead of water, questioning the reasoning behind this belief.
  • Participants express uncertainty about the formation of hydroxide ions and the conditions necessary for the reactions being discussed.

Areas of Agreement / Disagreement

Participants do not appear to reach consensus on the specific chemical reactions involved or the conditions required for the formation of hydroxide ions versus water. Multiple competing views remain regarding the nature of the reactions and the energy calculations involved.

Contextual Notes

Limitations include unclear definitions of the chemical reactions being referenced, the specific conditions under which they occur, and the assumptions about the formation of hydroxide ions versus water.

kunal
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hi i m working on hyrogen as a fuel and need to now exactly how much energy is relesed during its formation.
 
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kunal said:
during its formation.
What does "its" refer to? To Hydrogen gas (H2) or ____ Hydroxide?
You will need to be more specific as to what chemical reaction is occurring and also the conditions which the reaction occurs under (temperature, pressure).

You will need to calculate the change in the Gibbs Free Energy, this value determines the maximum amount of work the chemical reaction may do on its surroundings.
 
actually i m working on hydrogen as a fuel , so the conditions applied on the hydroxide ion formation are that of high temperature about 800C, i.e.all
all the condition working on an I.C. engines during the compression stroke.
wilthis help in finding the solution
 
So what type of Hydroxide salt do you propose is forming?
What chemical reaction do you think will occur?
You don't just form "Hydroxide" all by itself, you need a cation to balance out the Hydroxide anion.
 
hi! i m using the principle of disel engine , were i m compressing
oxygen and due to this compression the temp of oxygen raises to about 800C
and then adding half the no of hydrogen atom which results in the formation of hydroxide ions,balancing is not a problem as at a later stage
hydrogen is added to form water molecule.. i just need the energy relesed due to the formation of hydroxide ion and one thing more this whole process
will be comleted in .002 sec. just tell me if u can what is the pressure cond.
required.
 
im not forming any salt just trying to join hydrogen and oxygen(nasent)in their ionic form
 
im not forming any salt just trying to join hydrogen and oxygen(nasent)in their ionic form
 
kunal said:
[...] which results in the formation of hydroxide ions
Does it? I don't think so.
Why would it not react to form water?
What is your reason to believe it would form Hydroxide ions?
 
i m just suppling enough hudrogen as per oxygen atom ratio that m feasiability is that of formation of hyroxide ion
 

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