4.1.5 - Standard Enthalpy of Combustion (ΔH_c°)
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What is the standard enthalpy of combustion (ΔH_c°)?
💡 Hint: It relates to heat released during burning.
Is ΔH_c° positive or negative in combustion reactions?
💡 Hint: Think about heat release.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is ΔH_c° for combustion reactions?
💡 Hint: Recall that exothermic means heat exit.
True or False: The enthalpy of combustion can be positive.
💡 Hint: All combustions release energy, remember that!
1 more question available
Challenge Problems
Push your limits with advanced challenges
Calculate the ΔH_c° for the complete combustion of 3 moles of octane (C8H18) if it releases -11400 kJ.
💡 Hint: Divide total energy by number of moles.
An experiment shows that the combustion of 0.5 moles of a substance releases -650 kJ. Discuss how this value compares to values for other fuels like methane and propane.
💡 Hint: Relate energy values to determine effectiveness.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.