🔄Reversible reaction vs Irreversible reaction➡️
Reactions differ in direction. Some can run backward and reach equilibrium, while others proceed only one way.
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🔄Reversible reaction
- ✓Can proceed in both directions
- ✓Reaches a dynamic equilibrium
- ✓Products can re-form reactants
- ✓Shown with a double arrow
- ✓Examples: Haber process, esterification
➡️Irreversible reaction
- ✓Proceeds in one direction only
- ✓Goes essentially to completion
- ✓Products do not re-form reactants
- ✓Shown with a single arrow
- ✓Examples: combustion, neutralization
Verdict
Reversible reactions settle at an equilibrium where both directions occur; irreversible reactions run to completion. The arrow notation, double or single, signals which is which.
Frequently asked
What is equilibrium?+
A state in a reversible reaction where forward and reverse rates are equal and concentrations stay constant.
How is each shown in an equation?+
A reversible reaction uses a double arrow; an irreversible one uses a single arrow.
Is combustion reversible?+
No. Combustion goes to completion and is treated as an irreversible reaction.
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