The absolute temperature pertains to the temperature scale measured in kelvin where the zero on the Kelvin scale pertains to the theoretically lowest attainable temperature. This particular temperature scale was established after the observations of a phenomenon that at any given pressure, the plot of the temperature and the volume of a gas follows a straight line. Even with different pressures, the plot is always straight; furthermore, all plots seem to be directed towards a similar y-intercept which is -273.15 ˚C, that is, the temperature value when the volume is zero – or close to zero (Chang & Overby 144).
Theoretically,
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