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Initial Reactant Concentration for First Order Reaction using Molar Feed Rate Calculator

Initial Reactant Concentration Formula:

\[ C_o = \frac{\tau_i \times F_0}{V_i} \]

seconds
mol/s

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1. What is Initial Reactant Concentration for First Order Reaction?

Definition: This calculator determines the initial concentration of reactant in a first-order chemical reaction based on space time, molar feed rate, and reactor volume.

Purpose: It helps chemical engineers and researchers determine the starting concentration of reactants in continuous flow reactors.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ C_o = \frac{\tau_i \times F_0}{V_i} \]

Where:

Explanation: The space time multiplied by molar feed rate gives the total moles in the system, which when divided by volume gives concentration.

3. Importance of Initial Concentration Calculation

Details: Accurate initial concentration is crucial for reaction kinetics studies, reactor design, and predicting reaction outcomes.

4. Using the Calculator

Tips: Enter the space time in seconds, molar feed rate in mol/s, and reactor volume in m³. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is space time in chemical reactors?
A: Space time is the time required to process one reactor volume of feed at specified conditions.

Q2: How is molar feed rate determined?
A: Molar feed rate is calculated from the volumetric flow rate and concentration of the feed stream.

Q3: Does this work for batch reactors?
A: No, this formula is specifically for continuous flow reactors. Batch reactors have different calculations.

Q4: What affects initial reactant concentration?
A: Feed composition, flow rate, reactor volume, and reaction conditions all influence initial concentration.

Q5: How does this relate to reaction kinetics?
A: Initial concentration is crucial for determining reaction rates in first-order kinetics where rate = k[Co].

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