Equilibrium Vapour Density Formula:
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Definition: This calculator determines the equilibrium vapour density of a substance during chemical reaction based on initial conditions and degree of dissociation.
Purpose: It helps chemists and chemical engineers understand how vapour density changes as a reaction reaches equilibrium.
The calculator uses the formula:
Where:
Explanation: The formula accounts for how the vapour density changes as molecules dissociate during the reaction.
Details: Understanding vapour density at equilibrium is crucial for reaction kinetics, industrial process design, and safety calculations.
Tips: Enter the initial vapour density, initial concentration in mol/m³, and degree of dissociation (0-1 range). All values must be ≥ 0.
Q1: What is degree of dissociation?
A: It's the fraction of reactant molecules that dissociate into products at equilibrium (ranges from 0 to 1).
Q2: How does initial concentration affect the result?
A: The initial concentration cancels out in the formula, but is included for dimensional consistency.
Q3: What units are used for vapour density?
A: Vapour density is typically unitless (relative to air or hydrogen), but depends on your reference standard.
Q4: Can I use this for any chemical reaction?
A: This applies specifically to reactions where vapour density changes due to molecular dissociation.
Q5: What if degree of dissociation is zero?
A: If α=0 (no dissociation), equilibrium vapour density equals initial vapour density.