Maxwell-Boltzmann Distribution Formula
The Maxwell-Boltzmann distribution is the classical function for a distribution of an amount of energy between identical but distinguishable particles. It gives information about the occurrence of a particle at a given temperature and a given energy.
Maxwell-Boltzmann distribution = 1 / Exponential(energy/(Boltzmann constant Temperature))
The equation is:
f= 1/exp(-E/kT)
Where:
f: Energy distribution
E: energy of the system
k: Boltzmann constant. (1.38*10(-23) m2 kg /(s K2))
T: Absolute Temperature in Kelvin.
Maxwell-Boltzmann distribution Formula Questions:
1) If the temperature of a black body radiator is 5000 K, at an energy of 1*10(-19) J , which is its value of the distribution at that state?
Answer:
The distribution is found with the formula:
f = 1/exp(-E/kT)
then,
f = 1/exp(-1*10(-19) J/(1.38*10(-23) m2 Kg/(s K2)*5000 K)) = 0.234
2) The same black body before, but at temperature of 5000000 K, what is the value of the distribution, larger or shorter?
Answer:
The distribution is found with the formula:
f = 1/exp(E/kT)
then,
f = 1/exp(1*10(-19) J/(1.38*10(-23) m2 Kg/(s K2)*5000000 K)) = 0.9998
As temperature rises, the occurrence is larger.
Related Links: |