Curriculum
Science — Second Preparatory
Unit 1: Matter and Energy
0/8
Unit 2: Matter and Chemical Reactions
0/6
Unit 3: Energy Flow in Photosynthesis and Respiration
0/4
Unit 4: Geological Processes
0/4
Text lesson
Internal Energy and Temperature
Internal Energy and Temperature
Temperature and the average kinetic energy
Temperature and the average kinetic energy
- Temperature is a measure of the average kinetic energy of the particles of a substance. When the temperature rises, the average kinetic energy of the particles increases, and the reverse is also true.
- Temperature is measured in degrees Celsius (°C). In scientific calculations we also use the kelvin scale (K), with the relation:
- T (K) = t (°C) + 273
| Celsius (°C) | Kelvin (K) |
|---|---|
| 0 °C | 273 K |
| 27 °C | 300 K |
| 100 °C | 373 K |
- Temperature does not depend on the number of particles.
- A small cup of boiling water has the same temperature as a large pot of boiling water.
Internal Energy and Temperature · 2 / 7