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6 July, 06:00

Which of the following changes made to a sample of liquid would result in an increase in the distance between the individual molecules of the substance? Transferring the substance to a smaller containerAdding heat energy to the substanceChanging the phase of matter from liquid to solidDecreasing the overall kinetic energy of the liquid

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  1. 6 July, 06:20
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    Adding heat energy to the substance

    Explanation:

    Adding heat energy to a liquid sample would result in an increase in the distance between the individual molecules of the liquid.

    According to kinetic molecular theory of matter, the more the temperature of a substance, the more the kinetic energy of the molecules of the substance.

    Heat increases the temperature of a substance. The addition of heat to a substance therefore increases the average kinetic energy of the molecules of the substance.

    Also, the more the kinetic energy of the molecules in a substance, the more likely for the molecules to drift apart, that is, the average amount of empty space between molecules gets larger.

    Hence, the addition of heat energy to a liquid sample would result n an increase in the distance between the individual molecules of the liquid.
  2. 6 July, 06:29
    0
    Adding heat energy to the substance.

    Explanation:

    Thermal energy is associated with the kinetic energy of the particles that make up a body. By adding enough thermal energy to the molecules in a liquid, they overcome the molecular forces and separate, so that the substance becomes a gas; this is a phase change process.

    The higher the temperature, the higher the energy of the particles and the higher the speed of the particles.
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