8. Temperature and Temperature Scales
Temperature is a critical measure of the average kinetic energy of particles in a substance, influencing both physical and chemical processes. The chapter discusses various temperature scales including Celsius, Kelvin, and Fahrenheit, along with conversion methods between these scales. Additionally, concepts of absolute zero and the relationship between temperature and heat are explored, highlighting their relevance in everyday applications such as thermometers and thermal expansion.
Enroll to start learning
You've not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Sections
Navigate through the learning materials and practice exercises.
What we have learnt
- Temperature quantifies the kinetic energy of particles in matter.
- Celsius, Fahrenheit, and Kelvin are the primary temperature scales, each serving specific applications.
- Absolute zero is a theoretical limit and represents the lowest possible temperature.
Key Concepts
- -- Temperature
- A measure of the average kinetic energy of particles in a substance.
- -- Celsius Scale
- A temperature scale where water freezes at 0°C and boils at 100°C.
- -- Kelvin Scale
- The SI unit of temperature starting at absolute zero; 0 K corresponds to -273.15°C.
- -- Fahrenheit Scale
- A temperature scale where water freezes at 32°F and boils at 212°F.
- -- Absolute Zero
- The lowest possible temperature, at which particle motion ceases completely, defined as 0 K or -273.15°C.
- -- Heat Transfer
- The transfer of thermal energy from one object to another, occurring from hot to cold.
- -- Specific Heat Capacity
- The amount of heat required to raise the temperature of one unit mass of a substance by one degree Celsius.
Additional Learning Materials
Supplementary resources to enhance your learning experience.