Absolute temperature facts for kids
Absolute zero is the temperature at which a system is in the state of lowest possible (minimum) energy. As molecules approach this temperature their movements drop towards zero. No electronic devices work at this temperature.
Common temperatures in the absolute scale are:
- 0°C (freezing point of water) = 273.16K
- 25°C (room temperature) = 298.16K
- 100°C (boiling point of water) = 373.16K
- 0K (absolute zero) = -273.16°C
To convert from the Celsius scale into the absolute temperature, you add 273.16 and change °C to K. To get a temperature on the absolute scale to the Celsius scale, subtract 273.16 and change K to °C. This is normally used in the science world.
Celsius to Kelvin: K=C+273
Kelvin to Celsius : C=K-273
Images for kids
Fig. 1 The translational motion of fundamental particles of nature such as atoms and molecules are directly related to temperature. Here, the size of helium atoms relative to their spacing is shown to scale under 1950 atmospheres of pressure. These room-temperature atoms have a certain average speed (slowed down here two trillion-fold). At any given instant however, a particular helium atom may be moving much faster than average while another may be nearly motionless. Five atoms are colored red to facilitate following their motions.
Fig. 2 The translational motions of helium atoms occur across a range of speeds. Compare the shape of this curve to that of a Planck curve in Fig. 5 below.
Fig. 3 Because of their internal structure and flexibility, molecules can store kinetic energy in internal degrees of freedom which contribute to the heat capacity.
Fig. 8 When many of the chemical elements, such as the noble gases and platinum-group metals, freeze to a solid — the most ordered state of matter — their crystal structures have a closest-packed arrangement. This yields the greatest possible packing density and the lowest energy state.
Absolute temperature Facts for Kids. Kiddle Encyclopedia.