1. What is Initial Vapour Density?

Definition: Initial Vapour Density is the density of a vapour substance during the initial stages of reaction.

Purpose: It helps in understanding the behavior of gases during chemical reactions and is particularly important in equilibrium studies.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( D \) — Initial Vapour Density
• \( d \) — Equilibrium Vapour Density
• \( C_0 \) — Initial Concentration (mol/m³)
• \( \alpha \) — Degree of Dissociation

Explanation: The formula calculates the initial vapour density by considering the equilibrium vapour density, initial concentration, and degree of dissociation of the substance.

3. Importance of Initial Vapour Density Calculation

Details: Understanding initial vapour density is crucial for predicting reaction behavior, designing chemical processes, and studying reaction kinetics.

4. Using the Calculator

Tips: Enter the equilibrium vapour density, initial concentration in mol/m³, and degree of dissociation. All values must be ≥ 0.

5. Frequently Asked Questions (FAQ)

Q1: What is equilibrium vapour density?
A: Equilibrium Vapour Density is the density of a vapour substance during the stages of reaction at equilibrium.

Q2: How is degree of dissociation determined?
A: The Degree of Dissociation is the extent of generating current carrying free ions, which are dissociated from the fraction of solute at a given concentration.

Q3: What units should I use for concentration?
A: The calculator uses mol/m³ (moles per cubic meter) for concentration.

Q4: Can degree of dissociation be zero?
A: Yes, if there is no dissociation occurring in the reaction.

Q5: How does initial vapour density relate to molecular weight?
A: Vapour density is directly related to molecular weight, with higher molecular weight substances typically having higher vapour densities.