Write a Balanced Equation for Photosynthesis & Calculate Delta H Rxn
Balancing equations for photosynthesis and calculating the change in enthalpy (ΔH rxn) are crucial in understanding and analyzing photochemical reactions. This calculator helps you perform these tasks accurately and efficiently.
How to Use This Calculator
- Select the substrate from the dropdown menu.
- Enter the light intensity in Einstein m^-2 s^-1.
- Enter the reaction time in seconds.
- Click the “Calculate” button.
Formula & Methodology
The balanced equation for photosynthesis is:
6CO2 + 6H2O + light energy → C6H12O6 + 6O2
The change in enthalpy (ΔH rxn) is calculated using the following formula:
ΔH rxn = ΣΔHf(products) – ΣΔHf(reactants)
Real-World Examples
Data & Statistics
| Compound | ΔHf° (kJ/mol) |
|---|---|
| CO2 | -393.5 |
| H2O | -241.8 |
| C6H12O6 | -1274.4 |
| O2 | 0 |
Expert Tips
- Always use standard enthalpies of formation for the most accurate results.
- Consider the phase of reactants and products when calculating ΔH rxn.
- For complex reactions, break them down into simpler steps to calculate ΔH rxn.
Interactive FAQ
What is the balanced equation for photosynthesis?
6CO2 + 6H2O + light energy → C6H12O6 + 6O2
How is the change in enthalpy (ΔH rxn) calculated?
ΔH rxn = ΣΔHf(products) – ΣΔHf(reactants)
Learn more about photosynthesis from the National Institutes of Health