Zusammenfassung der Ressource
thermal energy
- Heat
- specific heat capacity
Anmerkungen:
- heat energy needed tp raise 1kg of a substance by 1K
- heat transfer
- Internal energy
Anmerkungen:
- internal energy is randomly distributed across all molecules according to Maxwell-Boltzmann distribution.
- Maxwell-Boltzmann Distribution
Anmerkungen:
- graph obtained by plotting kinetic energy against no. of molecules having that energy
- characteristic shape of the graph shows that :
1- there are no molecules with 0 energy
2- only a few molecules have high energy
3- there is no maximum value of energy a molecule can have
- this graph is for one specific temp.
as temp. changes so does the graph. the peak on the graph goes towards higher energy as temp. increases.
- Boltzmann constant,k, is 1.38*10^-23 J/K
- sum of potential energy and kinetic
energy of all molecules within a body
- Temperature
- unit is Kelvin,K
- Molecular Kinetic Energy