Below is a compiled list of the enthalpy of formation values of each species involved in the reactions:
To solve for ΔHo we use the formula below:
Note: n and m in the equation are just the coefficients in the reaction.
Calculate ΔHrxn for each of the following reactions using the data in Appendix 4:
4Na (s) + O2 (g) → 2Na2O (s)
2Na (s) + 2H2O (l) → 2NaOH (aq) + H2 (g)
2Na (s) + CO2 (g) → Na2O (s) + CO (g)
Explain why a water or carbon dioxide fire extinguisher might not be effective in putting out a sodium fire.
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Calorimetry concept. You can view video lessons to learn Calorimetry. Or if you need more Calorimetry practice, you can also practice Calorimetry practice problems.
What professor is this problem relevant for?
Based on our data, we think this problem is relevant for Professor Czernuszewicz's class at UH.
What textbook is this problem found in?
Our data indicates that this problem or a close variation was asked in Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition. You can also practice Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition practice problems.