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Need help calculating Internal energy

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Wienerbroed:

--- Quote from: Borek on June 27, 2021, 10:10:38 AM ---
These two statements contradict each other - unless you did calculations per 1 mole of nitroglycerine. If so, do the same for ΔU.

--- End quote ---


Don't I need the concentration of each substance? To find ΔU, i need to find ΔV, and to do that I should need the concentration (since V = n/c). How should I find the concentration in that case?
@Borek

Orcio_87:

--- Quote ---Don't I need the concentration of each substance? To find ΔU, i need to find ΔV, and to do that I should need the concentration (since V = n/c). How should I find the concentration in that case?
--- End quote ---
Equation tells us that N2 constitutes about 21 % of products (quantitative), CO2 about 41 % and so on...

 :-\

Wienerbroed:
How could we find the concentration of nitroglycerin?

Orcio_87:
Hard to say, it can be 100 or 99 % pure or - mixed with something. But - if not stated otherwise - it can be assumed that it is 100 % pure.

Borek:
Show how you did calculations of ΔH.

You don't need concentration of anything here.

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