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Topic: Re: Heat of neutralisation  (Read 4026 times)

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Offline darshanram

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Re: Heat of neutralisation
« on: September 03, 2015, 04:41:03 AM »
Can you generate electricity using heat of neutralisation? I did some calculations and it seems possible. it can heat up water up to 620 degree celcius which beats coal. Is it possible?

Offline Borek

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Re: Heat of neutralisation
« Reply #1 on: September 03, 2015, 08:16:19 AM »
Please elaborate. You are mixing several concepts, and it makes answering the question impossible.

Yes, neutralization produces heat. Yes, produced heat can heat up water. However, final temperature is not a measure of efficiency. Do you understand the difference between heat and temperature?
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Offline darshanram

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Re: Heat of neutralisation
« Reply #2 on: September 03, 2015, 09:08:53 AM »
by doing some calculations using certain formula the process could have a change in temperature until 600 degree celcius. I am pretty sure that the heat energy released can heat up water to produce steam n eventually electricity.The question is how long will it stay 600 degree celcius because that is the highest reading it will reach.

Offline Arkcon

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Re: Heat of neutralisation
« Reply #3 on: September 03, 2015, 09:47:58 AM »
It would be nice to see an example of your calculations, comparing say, the mixture of 1 N NaOH and 1 N of HCl, compared with how may grams of coal you want to burn.
Hey, I'm not judging.  I just like to shoot straight.  I'm a man of science.

Offline darshanram

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Re: Heat of neutralisation
« Reply #4 on: September 04, 2015, 02:08:06 AM »
I used the formula e=mcΘ   e/mol= 55700j

I used mv/1000 to find the mole.
the volume can be anything because the concentration will be constant.
just say the volume is 50 and the concentration is 80
 
50(80)/1000=4
e/4=55700    e=222800
222800= 100 × 4.2 × Θ
Θ= 530 degree celsius which is the change in temperature.

Offline Borek

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Re: Heat of neutralisation
« Reply #5 on: September 04, 2015, 02:34:44 AM »
the volume can be anything because the concentration will be constant.

No.

Quote
just say the volume is 50 and the concentration is 80

50 of what and 80 of what? Ignoring units is what made Mars Climate Orbiter to miss its target.
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Offline darshanram

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Re: Heat of neutralisation
« Reply #6 on: September 05, 2015, 02:21:28 AM »
50 centimetre cube and 80 mol dm. the volume can be anything so no problem. but the concentration will have to be high which is 80 mol dm.

Offline Borek

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Re: Heat of neutralisation
« Reply #7 on: September 05, 2015, 02:49:59 AM »
the concentration will have to be high which is 80 mol dm.

80 mol/dm3 of what? There is no substance with that high solubility.

You are throwing random numbers around, ignoring units, assuming others should waste the time trying to understand what you mean. That's a borderline trolling, you will either start being serious, or I am closing the thread.
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Offline darshanram

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Re: Heat of neutralisation
« Reply #8 on: September 05, 2015, 05:55:22 AM »
I clearly stated that the concentration is same for the acid and alkali... 80 mol/dm3 of both sulphuric acid and sodium hydroxide. A substance can reach that amount of solubility so don't worry. it will only have a molarity of 2 or 4 max. so it is possible. I am not just throwing in numbers so you listen up. I have been calculating all his for almost a month so don't piss me off.

Offline Dan

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Re: Heat of neutralisation
« Reply #9 on: September 05, 2015, 06:12:22 AM »
I clearly stated that the concentration is same for the acid and alkali... 80 mol/dm3 of both sulphuric acid and sodium hydroxide. A substance can reach that amount of solubility so don't worry.

Nonsense. Do you realise that pure sulfuric acid is ~18 mol/L?

it will only have a molarity of 2 or 4 max.

First 80 M, now 2 M or 4 M... which is it?

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Offline DrCMS

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Re: Heat of neutralisation
« Reply #10 on: September 05, 2015, 08:26:41 AM »
I have been calculating all his for almost a month so don't piss me off.

That's been a month wasted then.  Next time ask a grown up to check stuff first not last.

Offline Arkcon

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Re: Heat of neutralisation
« Reply #11 on: September 05, 2015, 08:51:56 AM »
I'm sorry darshanram:, but I'm going to politely ask you to re-read our forum rules.  We're not going to dump answers on this forum.  You'll have to work with real numbers, and real calculations, and show all work.
Hey, I'm not judging.  I just like to shoot straight.  I'm a man of science.

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