reversible and irreversible reaction

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REVERSIBLE AND IRREVERSABLE REACTION : 

REVERSIBLE AND IRREVERSABLE REACTION

REVERSIBLE REACTION : 

REVERSIBLE REACTION Is a chemical reaction that results in an equilibrium mixture of reactant and products.

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• For a reaction involving two reactants and two products this can be expressed symbolically as:

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A and B can react to form C and D or, in the reverse reaction, C and D can react to form A and B.

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A reversible reaction is shown by the sign, . a half-arrow to the right (direction of forward reaction), .and a half-arrow to the left (direction of backward reaction) .

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when steam is passed over red hot iron, magnetic oxide of iron and hydrogen gas are formed. If hydrogen gas is passed over heated magnetic oxide of iron, the reverse reaction takes place, producing iron and steam.

IRREVERSIBLE REACTION : 

IRREVERSIBLE REACTION a reaction whose equilibrium state are shifted so close to either the products or the reactants that the reaction effectively does  not have an equilibrium between the products and the reactants.

A truly irreversible chemical reaction is usually achieved when one of the products exits the reacting system, for example, as does carbon dioxide (volatile) in the reaction:CaCO3 + 2HCl → CaCl2 + H2O + CO2↑ : 

A truly irreversible chemical reaction is usually achieved when one of the products exits the reacting system, for example, as does carbon dioxide (volatile) in the reaction:CaCO3 + 2HCl → CaCl2 + H2O + CO2↑

a) Neutralization between strong acid and strong base  NaOH + HCl –> NaCl + H2O - when strong acid reacts with hydrochloric acid, it will formed sodium chloride and water. : 

a) Neutralization between strong acid and strong base  NaOH + HCl –> NaCl + H2O - when strong acid reacts with hydrochloric acid, it will formed sodium chloride and water.

Exercises: Identify if the reaction is REVERSIBLE or IRREVERSIBLE. : 

Exercises: Identify if the reaction is REVERSIBLE or IRREVERSIBLE.

Answer the following question.1. What kind of reaction is stop when the products is formed?2. What is required in reversible reaction?3.What represents this arrow? : 

Answer the following question.1. What kind of reaction is stop when the products is formed?2. What is required in reversible reaction?3.What represents this arrow?

4.What reaction have a backward and forward reaction?5. Does the irreversible reaction needs heat? : 

4.What reaction have a backward and forward reaction?5. Does the irreversible reaction needs heat?

Presented by: : 

Presented by: Anclarize E. Alcabasa Mary Jane E. Roa Charles Algreen C. Cena Jonell Dionisio

“JARC” : 

“JARC” Jonell AnClarize Roa Charles