Consider the following balanced chemical equation: 4Fe(s) + 302(9) → 2Fe2O3(s) a. How many moles of iron are required to react with 53.2 moles of O2? moles Fe b. How many moles of O2 are required to react with 53.2 moles of iron? moles 02 N c. How many moles of O2 are required to form 53.2 moles of Fe2O3? Assume excess Fe. moles 02 d. How many molecules of O2 are required to form 53.2 moles of Fe2O3? Assume excess Fe. (Click to select) x 10 molecules 02 12 of 15 ‒‒‒ H Next
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
![### Chemical Reactions and Stoichiometry
**Consider the following balanced chemical equation:**
\[
4\text{Fe}(s) + 3\text{O}_2(g) \rightarrow 2\text{Fe}_2\text{O}_3(s)
\]
**Questions:**
a. **How many moles of iron are required to react with 53.2 moles of O₂?**
____ moles Fe
b. **How many moles of O₂ are required to react with 53.2 moles of iron?**
____ moles O₂
c. **How many moles of O₂ are required to form 53.2 moles of Fe₂O₃? Assume excess Fe.**
____ moles O₂
d. **How many molecules of O₂ are required to form 53.2 moles of Fe₂O₃? Assume excess Fe.**
____ x 10^(Click to select) molecules O₂
**Instructions:**
- Use the stoichiometric ratios from the balanced equation to perform the necessary calculations.
- Provide the answers to each question in the boxes provided.
This exercise focuses on the application of stoichiometry, which is the calculation of reactants and products in chemical reactions, using a balanced chemical equation.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F71a927fc-62ac-4a80-ae04-4b8a02cdca06%2Fe7f9b6c2-b2de-4c15-ab36-69e87f265869%2Feckcvdn_processed.jpeg&w=3840&q=75)
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