Enthelpy of combustion of ethane

  • Thread starter Thread starter nevada2012
  • Start date Start date
  • Tags Tags
    Combustion
AI Thread Summary
The discussion centers on calculating the enthalpy of formation for ethane (C2H6) using its enthalpy of combustion, which is -2840 kJ. The user attempts a calculation involving the enthalpies of formation for water and carbon dioxide, but questions whether their method is correct, specifically referencing the need to write out the reaction equation first. Additionally, there is curiosity about the textbook being used for these calculations. The conversation highlights the importance of understanding the steps involved in thermodynamic calculations, particularly in writing balanced chemical equations before performing calculations.
nevada2012
Messages
3
Reaction score
0
hey guys i am having a really hard time doing enthalpy problems,

i am trying to do this(its not an homework question)


Calculate the enthalpy of formation of ethane (C2H6) given that the enthalpy of combustion of ethane is
-2840kj. DeltaHfH2O(1) = -286 kg/mol Delta HfCO2 (g) =-394 kg/per

is the answer -206?

this is what i did

-286 X -2840/-394


if not can you please give me step by step
 
Chemistry news on Phys.org


shouln't you first write out the reaction-equation ??
I wonder which textbook you are using ??
 

Thread 'Humidity of a saturated NaCl solution with anticaking additive'

I want to test a humidity sensor with one or more saturated salt solutions. The table salt that I have on hand contains one of two anticaking agents, calcium silicate or sodium aluminosilicate. Will the presence of either of these additives (or iodine for that matter) significantly affect the equilibrium humidity? I searched and all the how-to-do-it guides did not address this question. One research paper I found reported that at 1.5% w/w calcium silicate increased the deliquescent point by...
View full post »

Similar threads

What is the heat of combustion of 1 kg carbon dioxide w/ magnesium?
Replies
2
Views
2K
Chemistry Does Combusting Different Amounts of Propane Change Final Temperature?
Replies
5
Views
2K
Can the heat of combustion only be found experimentally?
Replies
12
Views
3K
How can I calculate heat of combustion and enthalpy using Hess's Law?
Replies
4
Views
3K
Chemistry Understanding the calculation of enthalpy of the formation of benzene
Replies
3
Views
2K
Is Decane a Viable Alternative to Octane for Engine Combustion?
Replies
6
Views
6K
Calculate the change in entropy for the system and the surroundings
Replies
13
Views
4K
Enthelpy of Formation of Tetraoxygen
Replies
4
Views
3K
Combustion calculations and the required amount of air
Replies
2
Views
11K
How do I calculate the enthelpy of formation using combusion data
Replies
9
Views
6K

Hot Threads

Recent Insights

Back
Top