Concentration of Reactant A in First Order Consecutive Reaction Calculator

Formula Used:

\[ A = A_0 \times e^{-k_1 \times t} \]

Concentration of A at Time t (mol/m³):

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1. What is Concentration of Reactant A in First Order Consecutive Reaction?

Definition: This calculator determines the remaining concentration of reactant A in a first-order consecutive reaction after a given time period.

Purpose: It helps chemists and chemical engineers understand reaction kinetics and predict reactant concentrations over time.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ A = A_0 \times e^{-k_1 \times t} \]

Where:

\( A \) — Concentration of A at time t (mol/m³)
\( A_0 \) — Initial concentration of reactant A (mol/m³)
\( k_1 \) — Reaction rate constant (1/s)
\( t \) — Time elapsed (seconds)

Explanation: The formula describes the exponential decay of reactant A in a first-order reaction.

3. Importance of Reaction Kinetics Calculation

Details: Understanding reactant concentrations over time is crucial for reaction optimization, process control, and safety considerations in chemical processes.

4. Using the Calculator

Tips: Enter the initial concentration of A, the reaction rate constant, and the time period. All values must be positive (time can be zero).

5. Frequently Asked Questions (FAQ)

Q1: What is a first-order reaction?
A: A reaction where the rate depends linearly on the concentration of one reactant.

Q2: How do I determine the rate constant?
A: The rate constant is typically determined experimentally from kinetic studies.

Q3: What units should I use?
A: Concentration in mol/m³, rate constant in 1/s, and time in seconds for consistent results.

Q4: Can this be used for other reaction orders?
A: No, this calculator is specific for first-order reactions.

Q5: What does the exponential term represent?
A: It represents the fraction of reactant A that remains unreacted after time t.