Difference between revisions of "Boltzmann Constant"
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*Used in the [[Ideal Gas|ideal gas]] law: | *Used in the [[Ideal Gas|ideal gas]] law: | ||
| − | <math>𝑃𝑉=𝑁𝑘𝑇</math> | + | <math>𝑃𝑉=𝑁𝑘𝑇</math> |
*Used in the formula relating the [[Kinetic Energy|kinetic energy]] of [[molecule]]s to their [[temperature]] in an [[Ideal Gas|ideal gas]]: | *Used in the formula relating the [[Kinetic Energy|kinetic energy]] of [[molecule]]s to their [[temperature]] in an [[Ideal Gas|ideal gas]]: | ||
| − | <math>\frac{1}{2}mv^2=\frac{3}{2}kT</math> | + | <math>\frac{1}{2}mv^2=\frac{3}{2}kT</math> |
*Important in the study of thermodynamics and statistical mechanics. | *Important in the study of thermodynamics and statistical mechanics. | ||
Revision as of 13:45, 22 May 2024
Key Stage 5
Meaning
The Boltzmann constant is the molar gas constant divided by the Avogadro constant.
About the Boltzmann Constant
- The Boltzmann constant denoted by the symbol 𝑘 or 𝑘B
- The Boltzmann constant has a value of 1.38×10−23 J/K.
- The Boltzmann constant relates the average kinetic energy of particles in a gas with the temperature.
- The Boltzmann constant is fundamental in the statistical description of physical systems.
Examples
- Used in the ideal gas law\[𝑃𝑉=𝑁𝑘𝑇\]
- Used in the formula relating the kinetic energy of molecules to their temperature in an ideal gas\[\frac{1}{2}mv^2=\frac{3}{2}kT\]
- Important in the study of thermodynamics and statistical mechanics.