reversible reaction: meaning, definition, pronunciation and examples

C2
UK/rɪˌvɜː.sə.bəl riˈæk.ʃən/US/rɪˈvɝː.sə.bəl riˈæk.ʃən/

Technical / Academic (Chemistry)

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Quick answer

What does “reversible reaction” mean?

A chemical reaction where the products can react together to reform the original reactants.

Audio

Pronunciation

Definition

Meaning and Definition

A chemical reaction where the products can react together to reform the original reactants.

A process in a closed system where the reaction can proceed in both forward and reverse directions, often reaching a state of dynamic equilibrium. More broadly, can describe any process that can be undone to return to a prior state.

Dialectal Variation

British vs American Usage

Differences

No significant lexical or conceptual differences. Spelling of related terms may follow regional conventions (e.g., catalysed/catalyzed).

Connotations

Identical technical connotations.

Frequency

Equally frequent in academic chemistry contexts in both regions.

Grammar

How to Use “reversible reaction” in a Sentence

The reaction is reversible.A reversible reaction occurs/establishes/leads to...to reach equilibrium in a reversible reaction

Vocabulary

Collocations

strong
dynamic equilibriumclosed systemdouble arrowforward and reverseequilibrium constant
medium
undergo a reversible reactioncatalyse a reversible reactionstudy a reversible reactionshift the equilibrium
weak
chemicalprocessratetemperaturepressure

Examples

Examples of “reversible reaction” in a Sentence

verb

British English

  • The system can reversibly react under these conditions.
  • The process reversibly forms the hydrate.

American English

  • The compounds reversibly react in a closed vessel.
  • The enzyme reversibly binds the substrate.

adverb

British English

  • The species are reversibly interconverted.
  • The bond forms reversibly.

American English

  • The components reversibly associate.
  • The change occurs reversibly.

adjective

British English

  • A thermally reversible reaction is key to the design.
  • The reversible reaction pathway was confirmed.

American English

  • The reversible reaction process was modeled.
  • We observed reversible reaction kinetics.

Usage

Meaning in Context

Business

Rare. Possibly in R&D or pharmaceutical contexts discussing chemical processes.

Academic

Core term in chemistry, biochemistry, and chemical engineering textbooks and research.

Everyday

Virtually never used in general conversation.

Technical

Precise term describing a fundamental concept in physical chemistry and thermodynamics.

Vocabulary

Synonyms of “reversible reaction”

Neutral

equilibrium reaction

Weak

two-way reactionbidirectional process

Vocabulary

Antonyms of “reversible reaction”

irreversible reactionone-way reactioncomplete reaction

Watch out

Common Mistakes When Using “reversible reaction”

  • Using a single arrow (→) instead of a double arrow (⇌) when writing the equation.
  • Confusing it with a reaction that has simply not gone to completion.
  • Thinking the reaction stops at equilibrium (it continues dynamically).

FAQ

Frequently Asked Questions

No, at equilibrium, the forward and reverse reactions continue at equal rates, so there is no net change, but the process is dynamic.

Not necessarily. A reaction may not go to completion due to kinetic limitations (it's slow), not because it's thermodynamically reversible. True reversibility is a thermodynamic property.

The melting of ice to water and freezing back to ice is a physical change but illustrates the concept of reversibility under different temperature conditions.

An irreversible reaction, like the combustion of fuel, where the products cannot easily be converted back to the original reactants under the same conditions.

A chemical reaction where the products can react together to reform the original reactants.

Reversible reaction is usually technical / academic (chemistry) in register.

Reversible reaction: in British English it is pronounced /rɪˌvɜː.sə.bəl riˈæk.ʃən/, and in American English it is pronounced /rɪˈvɝː.sə.bəl riˈæk.ʃən/. Tap the audio buttons above to hear it.

Learning

Memory Aids

Mnemonic

Think of a REVERSIBLE jacket you can turn inside out. A REVERSIBLE REACTION can also 'turn' the products back into reactants.

Conceptual Metaphor

A SEE-SAW or a TUG OF WAR at a standstill, representing the dynamic balance of forward and reverse processes.

Practice

Quiz

Fill in the gap
In a closed system, the decomposition of ammonium chloride is a reaction, as it can re-form the solid upon cooling.
Multiple Choice

What symbol is used to denote a reversible reaction in a chemical equation?