Which graph correctly shows the relationship between temperature and kinetic energy in one phase of matter?

1 answer

In a phase of matter, the relationship between temperature and kinetic energy is typically a direct one. As the temperature of a substance increases, the average kinetic energy of its particles also increases. This can be illustrated with a simple graph where the x-axis represents temperature (often measured in degrees Celsius or Kelvin) and the y-axis represents kinetic energy (typically measured in Joules).

The graph would show an upward slope, indicating that as temperature increases, kinetic energy increases correspondingly.

For a concrete example:

  • For solids, as temperature rises, the atoms vibrate more vigorously, which increases their kinetic energy.
  • In liquids and gases, the relationship remains the same, but the movement of particles becomes more complex (e.g., liquids have rotational motion in addition to vibrational motion, and gases have translational motion).

If you are looking for a specific type of graph, a linear graph with a positive slope would be the ideal representation of this relationship for one phase of matter.