How much heat (in kilojoules) is evolved or absorbed in the reaction of 3.35 of with enough carbon monoxide to produce iron metal?
3.35 what?
To determine the amount of heat evolved or absorbed in a chemical reaction, we need to use the concept of the enthalpy change (∆H) of the reaction. The enthalpy change is a measure of the heat energy exchanged during a reaction.
To find the amount of heat evolved or absorbed, we need to know the balanced chemical equation for the reaction in question. Since you didn't provide the complete equation, we cannot proceed with the specific values. However, I can guide you on how to determine the enthalpy change and calculate the heat evolved or absorbed once you have the balanced equation.
Here are the steps to determine the enthalpy change and calculate the heat involved:
1. Write the balanced chemical equation for the reaction. Make sure the equation is balanced in terms of atoms and charge.
2. Identify the stoichiometric coefficients of the reactants and products involved in the reaction. These coefficients indicate the relative quantities of each species involved in the reaction.
3. Consult reference sources like chemical tables, databases, or literature to find the standard enthalpy of formation (∆Hf) for each individual species present in the balanced equation. The standard enthalpy of formation is the amount of heat evolved or absorbed when 1 mole of a substance is formed from its elements under standard conditions.
4. Multiply the stoichiometric coefficients of the species by their respective enthalpies of formation (∆Hf). This will give you the change in enthalpy (∆H) for each species.
5. Take into account the sign convention. If heat is evolved during the reaction, the ∆H values will be negative. If heat is absorbed, the ∆H values will be positive.
6. Finally, use the values of ∆H to calculate the amount of heat evolved or absorbed. Multiply the ∆H value by the appropriate stoichiometric coefficient and convert the units if needed.
Following these steps will allow you to find the amount of heat evolved or absorbed in the reaction once you have the balanced equation and the necessary enthalpy data.