SUMMARY
This discussion focuses on Hess' Law as it applies to the reaction C2H4 (g) + H2O (g) -> C2H5OH (g), with a calculated enthalpy change (ΔH) of -89 kJ. The user attempts to reconcile their calculation with a textbook answer of +3 kJ, asserting their calculation is correct. The discrepancy highlights the importance of correctly applying Hess' Law to determine the overall enthalpy change in chemical reactions.
PREREQUISITES
- Understanding of Hess' Law
- Basic knowledge of enthalpy changes (ΔH)
- Familiarity with chemical reaction equations
- Ability to perform thermodynamic calculations
NEXT STEPS
- Review Hess' Law applications in thermodynamics
- Study enthalpy change calculations for multi-step reactions
- Learn about standard enthalpy of formation
- Explore discrepancies in thermodynamic data interpretation
USEFUL FOR
Chemistry students, educators, and anyone studying thermodynamics or chemical reaction energetics will benefit from this discussion.