Question

Calculate the mass of CO₂ produced per kJ of heat emitted.

Answer 1

To calculate the mass of CO₂ produced per kJ of heat emitted, you need to determine the enthalpy change for the combustion reaction and use stoichiometry. Follow the step-by-step process provided to calculate this.

Step-by-step explanation:

In order to calculate the mass of CO₂ produced per kJ of heat emitted, we need to know the enthalpy change for the combustion reaction of the substance in question. Once we have this information, we can use stoichiometry to determine the molar ratio between the heat emitted and the mass of CO₂ produced. Here is a step-by-step process for calculating this:

1. Determine the enthalpy change for the combustion reaction in kJ/mol.
2. Convert the given heat emitted in kJ to moles using the molar enthalpy change.
3. Use the molar ratio between CO₂ and the substance being combusted to convert moles of heat emitted to moles of CO₂.
4. Convert moles of CO₂ to grams using the molar mass of CO₂.
5. Divide the mass of CO₂ by the heat emitted in kJ to get the mass of CO₂ produced per kJ of heat emitted.