physics

The entropy of a system is a measure of that system's disorder. Why is it appropriate to describe a laser as an entropy-reducing device?

I take some issue with the first sentence. It is better, in my view, to describe entropy as a measure of chaos. As chaos in a system increases, the entropy is a measure of that. If the chaos decreases, entropy decreases. Now in a laser, what is happening to the molecules in the laser as it lases? Is it becoming more chaotic, or not?

  1. 👍 0
  2. 👎 0
  3. 👁 122

Respond to this Question

First Name

Your Response

Similar Questions

  1. RE: Physics: Thermodynamics

    well the second law states that natural processes go in a direction that maintains or increases the total entropy of the universe. entropy is the measure of disorder in a system, so I really do not know the best way to answer this

    asked by Anonymous on November 18, 2010
  2. Environmental Science

    State the two energy laws. I only found that basic types are potential and kinetic energy. Em I right or wrong? My other question How does it relate to entropy? Entropy is a measure of disorder or uncertainly about a system. Don't

    asked by Jas on September 5, 2007
  3. Chem please help

    What does the second law of thermodynamics say about entropy? A. Only changes in entropy can be measured. B. The entropy in a system is zero at equilibrium. C. The entropy in a system and its surroundings tends to increase. D.

    asked by Morgan on November 24, 2014
  4. chemistry

    true or false Entropy always tend to favor mixing Mixing result in positive change in entropy Entropy allows endothermic processes to be spontaneous Pure liquids don't have entropy Addition of salt to water increases entropy

    asked by Jazz on May 6, 2015
  5. physics.......to bobpursley

    Bobpursley: Which of the following systems have high entropy? Which systems have low entropy? a. papers scattered randomly across a desk b. a freshly opened pack of cards c. a cultivated field of cabbages d. a room after a party I

    asked by anonymous on February 14, 2007
  6. Chemistry- HWK CHECK

    1. A solution in which no more solid can be dissoved is referred to as ____. Answer: saturated 2.At constant pressure, heat can be referred to as (entropy, enthalpy, or free energy). Answer: enthalpy The measure of disorder or

    asked by Blair on August 4, 2008
  7. physics

    Why does water freezing not violate the second law of thermodynamics? (Hint: Think in terms of a system) The entropy of the water decreases when it freezes and goes into a more ordered crystaline state. However, heat is released

    asked by anonymous on February 19, 2007
  8. Chemistry - Help!!!

    Which of the following criteria indicate that a reaction is SPONTANEOUS? Check all that apply. a) The change in free energy is positive. b) The entropy of the universe decreases. c) The change in free energy is negative. d) The

    asked by Pam on May 3, 2011
  9. physics

    Consider a system of N identical particles. Each particle has two energy levels: a ground state with energy 0, and an upper level with energy . The upper level is four-fold degenerate (i.e., there are four excited states with the

    asked by martin on March 11, 2012
  10. physics

    I am to measure the deflection by contructing a post and lintel system using the dowels I have (with different diameters, which will be my variables). This is a system to measure the deflection under a load. I want to create a

    asked by Jan on December 2, 2006

More Similar Questions