1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Condensed matter - Is quantum effects relevant.

  1. Oct 21, 2012 #1
    a) Are quantum effects relevant for the air around us?

    The Fermi energy of athmosperic air:
    [itex] \epsilon_F = \dfrac{\hbar^2}{2m_{air}}(3\pi^2C)^{2/3}[/itex]

    Attempt to solve:
    I calculated the fermi energy to : [itex] \epsilon_F = 1\times 10^{-25}\,\text{J}[/itex]
    And [itex] k_bT = k_b 293\,\text{K} = 4\times 10^{-21}\,\text{J}[/itex]
    The fermi energy is orders of magnutide smaller than kbT, and thus the quantum effects are not relevant.

    What is the physical meaning of the term [itex] k_bT[/itex]
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted

Similar Discussions: Condensed matter - Is quantum effects relevant.
  1. Quantum Effect (Replies: 1)