Extent of Reaction Formula:
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Definition: Extent of Reaction measures the progress of a chemical reaction and is defined as the degree to which a reaction has advanced.
Purpose: It helps chemists and chemical engineers quantify how far a reaction has proceeded towards equilibrium.
The calculator uses the formula:
Where:
Explanation: The difference between equilibrium and initial moles is divided by the stoichiometric coefficient to determine the extent of reaction.
Details: Calculating the extent of reaction helps in understanding reaction kinetics, determining equilibrium positions, and designing chemical reactors.
Tips: Enter the number of moles at equilibrium, initial number of moles, and stoichiometric coefficient. The stoichiometric coefficient must be non-zero.
Q1: What does a negative extent of reaction mean?
A: A negative value indicates the reaction is proceeding in the reverse direction from what was defined in the stoichiometric equation.
Q2: How is the stoichiometric coefficient determined?
A: It comes from the balanced chemical equation (positive for products, negative for reactants).
Q3: Can extent of reaction be greater than 1?
A: Yes, it depends on the mole quantities and stoichiometry. It's not a percentage but an absolute measure.
Q4: What units does extent of reaction have?
A: It has units of moles (mol).
Q5: How does this relate to reaction completion?
A: The maximum extent of reaction indicates complete conversion of limiting reactant to products.