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  1. For practical purposes, an equilibrium constant greater than about 10 3 means that the amount of reactant left over will be barely detectable (less than 0.1%). What determines the magnitude of the equilibrium constant?

  2. Jan 14, 2019 · I was tripped off by the term ' forward reaction ', can someone explain in layman terms what is meant by this? The forward reaction is the reaction as written, towards products, in the direction of the reaction arrow. Naturally, the reverse or backwards reaction is in the opposite direction.

  3. Apr 12, 2023 · The amount of work done ( w) and thus the energy required depends on three things: (1) the height of the second floor (the distance d ); (2) your mass, which must be raised that distance against the downward acceleration due to gravity; and (3) your path, as you will learn in Section 9.2.

    • Zero-Order Reactions
    • First-Order Reactions
    • Second-Order Reactions
    • Factors Affecting Reaction Rate

    Zero-order reactions (where order = 0) have a constant rate. The rate of a zero-order reaction is constant and independent of the concentration of reactants. This rate is independent of the concentration of the reactants. The rate law is: rate = k, with k having the units of M/sec.

    A first-order reaction (where order = 1) has a rate proportional to the concentration of one of the reactants. The rate of a first-order reaction is proportional to the concentration of one reactant. A common example of a first-order reaction is radioactive decay, the spontaneous process through which an unstable atomic nucleusbreaks into smaller, ...

    A second-order reaction (where order = 2) has a rate proportional to the concentration of the square of a single reactant or the product of the concentration of two reactants. The formula is: rate = k[A]2 (or substitute B for A or k multiplied by the concentration of A times the concentration of B), with the units of the rate constant M-1sec-1

    Chemical kinetics predicts that the rate of a chemical reaction will be increased by factors that increase the kinetic energy of the reactants (up to a point), leading to the increased likelihood that the reactants will interact with each other. Similarly, factors that decrease the chance of reactants colliding with each other may be expected to lo...

  4. Within a liquid, molecules move with respect to one another. That is why liquids flow. What does that mean at the molecular level? It means that the molecules are (on average) moving fast enough to break some, but not all, of the interactions linking them to their neighbors.

  5. The five main postulates of the KMT are as follows: (1) the particles in a gas are in constant, random motion, (2) the combined volume of the particles is negligible, (3) the particles exert no forces on one another, (4) any collisions between the particles are completely elastic, and (5) the average kinetic energy of the particles is proportion...

    • 6 min
    • Sal Khan
  6. Mar 19, 2023 · Kinetic energy is associated with motion, but in two different ways. For a macroscopic object such as a book or a ball, or a parcel of flowing water, it is simply given by Equation \ref{KE}. But as we mentioned above, when an object is dropped onto the floor, or when an exothermic chemical reaction heats surrounding matter, the kinetic energy ...

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