Concentration Formula:
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Definition: This calculator determines the concentration of intermediate product B in a consecutive chemical reaction where k2 is much greater than k1.
Purpose: It helps chemists and chemical engineers analyze reaction kinetics and intermediate product formation in consecutive reactions.
The calculator uses the formula:
Where:
Explanation: The formula calculates the steady-state concentration of intermediate B when k2 ≫ k1 in consecutive reactions A → B → C.
Details: Understanding intermediate concentrations is crucial for reaction optimization, product yield prediction, and process control in chemical industries.
Tips: Enter the concentration of A, both rate constants (k1 and k2). Ensure k2 > k1 for valid results. All values must be positive.
Q1: When is this approximation valid?
A: This formula is valid when k2 is significantly larger than k1 (typically k2 > 10×k1).
Q2: What if k2 is not much greater than k1?
A: You would need to use the full kinetic solution for consecutive reactions.
Q3: How do I determine the rate constants?
A: Rate constants are typically determined experimentally or from literature data.
Q4: Does this consider reverse reactions?
A: No, this assumes irreversible consecutive reactions.
Q5: What units should I use?
A: Use consistent units - concentration in mol/m³ and rate constants in s⁻¹.