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Spontaneous Reaction quiz

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Terms in this set (15)

  • What is thermodynamics concerned with in physical science?
    Thermodynamics is concerned with the transformation of heat and other forms of energy from one type to another.
  • What is a spontaneous reaction?
    A spontaneous reaction is a process that occurs without the need for an outside energy source.
  • What is a non-spontaneous reaction?
    A non-spontaneous reaction is a process that requires a continuous supply of energy to occur.
  • What is an example of a spontaneous process given in the lesson?
    A boulder rolling down a hill is an example of a spontaneous process because it does not require outside energy.
  • What is an example of a non-spontaneous process given in the lesson?
    A car running is a non-spontaneous process because it needs a battery and gasoline to operate.
  • Which variables help determine if a reaction is spontaneous?
    Variables such as delta G, delta S, and k help determine if a reaction is spontaneous.
  • Does spontaneity depend on the speed of a reaction?
    No, spontaneity does not depend on the speed; a spontaneous reaction can be fast or slow.
  • What does kinetics deal with in chemical reactions?
    Kinetics deals with the speed of a reaction, not whether it is spontaneous.
  • If a reaction is spontaneous in one direction, what is true about the reverse reaction?
    If a reaction is spontaneous in one direction, the reverse reaction is non-spontaneous.
  • What do spontaneous reactions always move towards?
    Spontaneous reactions always move towards equilibrium.
  • Can a non-spontaneous reaction continue without a constant energy supply?
    No, a non-spontaneous reaction will stop if the energy supply is removed.
  • Is it possible to create a non-spontaneous reaction that continues indefinitely?
    No, because you cannot supply energy forever, a non-spontaneous reaction cannot continue indefinitely.
  • How can you use real-life logic to determine if a reaction is spontaneous?
    If a process happens naturally in real life, it is likely spontaneous; if it seems unnatural, it is non-spontaneous.
  • What is the relationship between thermodynamics and spontaneity?
    Spontaneity is a concept in thermodynamics, which deals with the direction and energy changes of reactions.
  • What is the difference between natural and unnatural processes in terms of spontaneity?
    Natural processes are spontaneous and occur without outside energy, while unnatural processes are non-spontaneous and require continuous energy input.