Standard enthelphy change and hybridisation

Click For Summary
SUMMARY

The discussion centers on the standard enthalpy change and the valence electron count of Fe2+. The correct formula for calculating standard enthalpy change is indeed the difference between the enthalpy of products and reactants, which is expressed as Product - Reactant. Regarding Fe2+, it retains 6 valence electrons due to its electron configuration, which includes the d-orbitals. This understanding is crucial for accurately interpreting thermodynamic and electronic properties in chemistry.

PREREQUISITES
  • Understanding of thermodynamics, specifically standard enthalpy change
  • Familiarity with electron configurations and valence electrons
  • Knowledge of chemical reactions and their components
  • Basic principles of oxidation states in transition metals
NEXT STEPS
  • Study the concept of standard enthalpy change in detail using thermodynamic textbooks
  • Learn about electron configurations of transition metals, focusing on Fe and its oxidation states
  • Explore the principles of chemical thermodynamics and reaction mechanisms
  • Investigate the role of d-orbitals in determining the properties of transition metals
USEFUL FOR

Chemistry students, educators, and professionals seeking to deepen their understanding of thermodynamics and transition metal chemistry.

crays
Messages
160
Reaction score
0
Hi guys, here i have two question, but i don't understand the answer at all.

For the standard enthalphy change question 5) b) i) shouldn't it be standard enthalphy change = Product - Reactant? But from the answer it was given as reactant - product.

For question number 8, i don't understand why Fe2+ still has 6 valence electrons, shouldn't it be 4?

ques1.jpg


ques2.jpg
 
Physics news on Phys.org
Any help please?
 

Similar threads

Chemistry What determines the direction of a reaction under standard state conditions?
  • · Replies 1 ·
Replies
1
Views
2K
Chemistry Understanding the calculation of enthalpy of the formation of benzene
  • · Replies 3 ·
Replies
3
Views
3K
Chemistry A calculation of enthalpy, entropy, and Gibbs energy of vaporization
  • · Replies 1 ·
Replies
1
Views
2K
Equilibrium: Le Chatelier's Principle and CaCO3 Decomposition
  • · Replies 1 ·
Replies
1
Views
2K
Chemistry Where Did the 400g in Enthalpy Change of Neutralization Come From?
  • · Replies 3 ·
Replies
3
Views
3K
Chemistry Does Combusting Different Amounts of Propane Change Final Temperature?
  • · Replies 5 ·
Replies
5
Views
3K
Electrochemical Cells (involving partial pressures and pH)
  • · Replies 7 ·
Replies
7
Views
7K
Calculate standard enthelpy of change and find heat from one reactant
  • · Replies 3 ·
Replies
3
Views
13K
Chemistry How to find the pH of a galvanic cell (MIT OCW problem set)
  • · Replies 2 ·
Replies
2
Views
4K
Determine percentage of iron(II) and iron(III) in a solution
  • · Replies 13 ·
Replies
13
Views
7K