Understanding Molar Enthalpy Change: Differences and Calculations Explained

  • Thread starter Thread starter cookiefairy
  • Start date Start date
  • Tags Tags
    Change
Click For Summary
Molar enthalpy change refers to the enthalpy change per mole of substance, expressed in kJ/mol. It is calculated by dividing the total enthalpy change by the number of moles involved in the reaction. The discussion clarifies that "molar" pertains to the amount of substance in moles, not the concentration of solutions. Understanding this distinction is crucial for accurate thermodynamic calculations. Overall, the formula for molar enthalpy change is essential for determining energy changes in chemical reactions.
cookiefairy
Messages
1
Reaction score
0
What is the difference between enthalpy change in kj and molar enthalpy change?



Is molar relating to the concentration of solutions used or the moles of solutions used?



Do you work out the enthalpy change and divide by the amount of moles to get kj per mol?


CAN ANYONE HELP ME!
XXX
 
Physics news on Phys.org
Molar enthalpy change = (enthalpy change/no.of moles)
So, its units are kJ/mol
 

Similar threads

  • · Replies 3 ·
Replies
3
Views
3K
  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 9 ·
Replies
9
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 19 ·
Replies
19
Views
4K
Replies
9
Views
2K
Replies
13
Views
4K
Replies
6
Views
4K