Total Pressure Formula:
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Definition: This calculator determines the total pressure of a system based on the equilibrium constant with respect to pressure (Kp) 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.
The calculator uses the formula:
Where:
Explanation: The formula relates the total pressure of a system to its equilibrium constant and the extent to which molecules dissociate.
Details: Understanding this relationship is crucial for predicting reaction behavior, designing chemical processes, and optimizing reaction conditions in industrial applications.
Tips: Enter the equilibrium constant (Kp) in mol/m³ and the degree of dissociation (α) between 0 and 1. The degree of dissociation represents the fraction of molecules that dissociate.
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 Kp?
A: The calculator expects Kp 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.