Problem: For which of the following reactions is ΔH°rxn equal to ΔH°f of the product(s)?2Na(s) + Cl2(g) → 2NaCl(s)H2(g) + 12O2(g) → H2O(g)Na(s) + 12Cl2(g) → NaCl(s)H2O2(g) → 12O2(g) + H2O(g)2H2(g) + O2(g) → 2H2O(g)Na(s) + 12Cl2(l) → NaCl(s)
FREE Expert Solution
Recall that the equation for ΔH°rxn is:
Where:
(products) = sum of ΔH°f of products
(reactants) = sum of ΔH°f of reactants
For this problem, we are asked the find the reaction where ΔH°rxn is equal to ΔH°f of the product(s).
Problem Details
For which of the following reactions is ΔH°rxn equal to ΔH°f of the product(s)?
2Na(s) + Cl2(g) → 2NaCl(s)
H2(g) + 12O2(g) → H2O(g)
Na(s) + 12Cl2(g) → NaCl(s)
H2O2(g) → 12O2(g) + H2O(g)
2H2(g) + O2(g) → 2H2O(g)
Na(s) + 12Cl2(l) → NaCl(s)
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 Formation Equations concept. You can view video lessons to learn Formation Equations. Or if you need more Formation Equations practice, you can also practice Formation Equations practice problems.
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Based on our data, we think this problem is relevant for Professor Khajo's class at CCNY.