1. What is Energy of Photochemical Reaction Calculator?

Definition: This calculator estimates the energy absorbed by one mole of a substance undergoing a photochemical reaction based on the frequency of light.

Purpose: It helps chemists and researchers determine the energy requirements for photochemical processes.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( E \) — Energy (Joules)
• \( [Avaga-no] \) — Avogadro's number (6.02214076×10²³ mol⁻¹)
• \( [hP] \) — Planck's constant (6.626070040×10⁻³⁴ J·s)
• \( f \) — Frequency (Hz)

Explanation: The energy is calculated by multiplying Avogadro's number, Planck's constant, and the frequency of the light.

3. Importance of Energy Calculation in Photochemical Reactions

Details: Accurate energy calculation helps in understanding reaction mechanisms, predicting reaction rates, and designing efficient photochemical processes.

4. Using the Calculator

Tips: Enter the frequency of light in Hertz (Hz). The value must be greater than 0.

5. Frequently Asked Questions (FAQ)

Q1: What is Avogadro's number?
A: It's the number of particles (atoms or molecules) in one mole of a substance (6.02214076×10²³ mol⁻¹).

Q2: What is Planck's constant?
A: It's a fundamental constant (6.626070040×10⁻³⁴ J·s) that relates the energy of a photon to its frequency.

Q3: How do I find the frequency of light?
A: Frequency can be calculated from wavelength using \( f = c/\lambda \), where c is the speed of light.

Q4: What units does this calculator use?
A: The calculator uses SI units - Hertz (Hz) for frequency and Joules (J) for energy.

Q5: Can I use this for non-photochemical reactions?
A: This specifically calculates energy for photochemical reactions where light is absorbed.