1. What is Total Pressure given Equilibrium Constant Calculator?

Definition: This calculator determines the total pressure of a system based on the equilibrium constant with respect to pressure (K_p) and the degree of dissociation (α).

Purpose: It helps chemists and chemical engineers understand the relationship between total pressure, equilibrium constant, and degree of dissociation in gaseous reactions.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P_T \) — Total pressure (Pascals)
• \( K_p \) — Equilibrium constant for partial pressure (mol/m³)
• \( \alpha \) — Degree of dissociation (dimensionless, between 0 and 1)

Explanation: The formula relates the total pressure of a system to its equilibrium constant and the extent to which molecules dissociate.

3. Importance of Total Pressure Calculation

Details: Understanding this relationship is crucial for predicting reaction behavior, designing chemical processes, and optimizing reaction conditions in industrial applications.

4. Using the Calculator

Tips: Enter the equilibrium constant (K_p) in mol/m³ and the degree of dissociation (α) between 0 and 1. The degree of dissociation represents the fraction of molecules that dissociate.

5. Frequently Asked Questions (FAQ)

Q1: What is the degree of dissociation?
A: The degree of dissociation (α) is the fraction of reactant molecules that dissociate into products at equilibrium.

Q2: What units should I use for K_p?
A: The calculator expects K_p in mol/m³. Convert your values if necessary.

Q3: What's the range for degree of dissociation?
A: The degree of dissociation must be between 0 (no dissociation) and 1 (complete dissociation).

Q4: When is this formula applicable?
A: This formula applies to simple dissociation reactions where one molecule dissociates into two particles (A ⇌ 2B).

Q5: How does pressure affect equilibrium?
A: For reactions involving gases, changing the total pressure can shift the equilibrium position according to Le Chatelier's principle.