How would you go about answering

[ArkansasRanger]

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this question that isn't really a question.

I'm told to "write the chemical equation for pyridine (C5H5N) from atoms in the gaseous state, the starting point for all substances in the delta H atom combination table." Then it says to do the same from pyridine's "constituent elements, the starting point for all substances in the fusion table."

What the deuce does that mean? 😕

 

[owlegrad]

this question that isn't really a question.

I'm told to "write the chemical equation for pyridine (C5H5N) from atoms in the gaseous state, the starting point for all substances in the delta H atom combination table." Then it says to do the same from pyridine's "constituent elements, the starting poing for all substances in the fusion table."

What the deuce does that mean? 😕

Maybe my undergrad education was sub-par. I don't even know what a starting poing is...

 

[ArkansasRanger]

Maybe my undergrad education was sub-par. I don't even know what a starting poing is...

typo

it's point

 

[owlegrad]

typo

it's point

I still can't answer the question, although it does make more since now.

 

[ArkansasRanger]

I still can't answer the question, although it does make more since now.

Someone here's a smartass.

 

[owlegrad]

Someone here's a smartass.

Oh my yes. I often wonder if it comes across in print, glad to see it does. 👍

 

[OChemProf]

this question that isn't really a question.

I'm told to "write the chemical equation for pyridine (C5H5N) from atoms in the gaseous state, the starting point for all substances in the delta H atom combination table." Then it says to do the same from pyridine's "constituent elements, the starting point for all substances in the fusion table."

What the deuce does that mean? 😕

My guess is that they want you to determine the heat of formation of pyridine which can be determined by writing an equation from elements / molecules in the form they are found in nature.......

For pyridine, which consists of carbon, hydrogen and nitrogen, you would need to determine how those elements are found in nature.....carbon exists as a solid, hydrogen and nitrogen exist as diatomic molecules.....therefore the equation becomes......

C(s) + H2 (g) + N2 (g) ----> C5H5N (l)

(I will allow you to balance this equation)

From here, use Hess's law to determine the enthalpy of formation.......