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: 

Hrxn=products-reactants

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°of the product(s).

87% (200 ratings)
View Complete Written Solution
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.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Khajo's class at CCNY.