Saturday
April 19, 2014

Homework Help: Physics

Posted by Steven on Monday, August 5, 2013 at 12:12pm.

Dust particles are trapped on a surface. There are two energy levels particles can be in: absorbed on a surface with zero energy, and wiggling with energy E=3/2kT. However, since the surface area is limited, not all particles can be in any state. There are 1000 particles and 1000 "holes" for them, 20 % of which are the wiggling ones. What is the ratio of expected energy of the dust particles and kT?

Details and assumptions
The probability that a particle has energy E is proportional to exp(−E/(kT)).
The particles are identical.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Physics (please help!) - 1000 dust particles are trapped on a surface. There are...
Physics - As a comet swings around the Sun, ice on the comet's surface vaporizes...
Statistics - Here is my question: The size of dust particles was measured in a ...
Science - What absorbs or reflects energy from the sun in the atmosphere? I say...
science - why are dust particles and other particles necessary for percipitation...
physic - 3. I have two identical dust particles. They are spheres with diameters...
physics - to prevent dust and soot particles from polluting the atmosphere, ...
physics - Two charged dust particles exert a force of 5.3 x 10^-2 N on each ...
Physics - Two charged dust particles exert a force of 3.8 10^-2 N on each other...
science - why can we see dust particles in the air in bright light and what is ...

Search
Members