Reversible Reactions And Equilibria
Muhtasari
Most of the reactions you have studied so far go in one direction only: reactants turn into products and that is the end of it. But some reactions can go both ways. The products can reform the original reactants, and under the right conditions both directions happen at the same time.
In this lesson you will learn what makes a reaction reversible, explore two classic examples (ammonium chloride and hydrated copper(II) sulfate), and understand how the equilibrium symbol tells you that both forward and reverse reactions are taking place simultaneously.
Malengo
- Know that some reactions are reversible and that this is indicated by the equilibrium symbol in equations
- Describe reversible reactions such as the dehydration of hydrated copper(II) sulfate and the effect of heat on ammonium chloride
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- Which symbol is used in equations for reversible reactions? A) A single arrow pointing right B) Two full arrows pointing in opposite directions C) Two half-arrows pointing in opposite directions D) An equals sign Answer: C
- When hydrated copper(II) sulfate is heated, the colour change is: A) White to blue B) Blue to green C) Blue to white D) Green to white Answer: C
- What is produced when ammonium chloride is heated? A) Nitrogen and hydrogen chloride B) Ammonia and hydrogen chloride C) Ammonia and chlorine D) Nitrogen and hydrogen Answer: B
- If the forward reaction of a reversible process is endothermic, the reverse reaction is: A) Also endothermic B) Exothermic C) Neither exothermic nor endothermic D) Cannot be determined Answer: B
- Anhydrous copper(II) sulfate can be used as a test for: A) Carbon dioxide B) Oxygen C) Water D) Hydrogen Answer: C
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Vitabu Vinavyopendekezwa
Jifunze zaidi kutoka vyanzo huria
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Sehemu ya kitabu
Chemical Equilibria
Describe the nature of equilibrium systems
"Chemistry: Chemical Equilibria" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/chemistry/pages/13-1-chemical-equilibria. Access for free at https://openstax.org/books/chemistry/pages/1-introduction
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