Irreversible Reactions in Chemistry
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Questions and Answers

What is the rate with which the reactants form products in a reversible reaction called?

  • Forward reaction rate (rf) (correct)
  • Dynamic reaction rate
  • Reverse reaction rate (rr)
  • Equilibrium rate

    • When is equilibrium in a chemical reaction reached?

  • When only products are present
  • At the beginning of the reaction
  • When the concentration of reactants is highest
  • When the rate of forward reaction equals the rate of reverse reaction (correct)

    • What happens to the rate of forward reaction as the concentration of reactants decreases?

  • It becomes erratic
  • It increases
  • It decreases (correct)
  • It remains constant

    • Why does the rate of reverse reaction increase as the reaction progresses?

    <p>Due to the increase in the concentration of products</p> Signup and view all the answers

    In a reversible process, what does chemical equilibrium signify?

    <p>Rates of opposing reactions are equal</p> Signup and view all the answers

    Which of the following is a characteristic of an irreversible reaction?

    <p>The reaction proceeds until the reactants are completely consumed.</p> Signup and view all the answers

    What is the purpose of using a single arrow (→) in the equation for an irreversible reaction?

    <p>To indicate that the reaction proceeds in only one direction.</p> Signup and view all the answers

    What is the general form of a reversible reaction equation?

    <p>aA + bB ⇌ cC + dD</p> Signup and view all the answers

    What is the difference between the forward reaction and the reverse (backward) reaction in a reversible reaction?

    <p>The forward reaction is the reaction in which the original reactants form products, and the reverse reaction is the reaction in which the products are converted back to the original reactants.</p> Signup and view all the answers

    Which type of reaction is represented by the equation C(s) + O2 (g) → CO2 (g)?

    <p>An irreversible reaction</p> Signup and view all the answers

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