Recent content by PiersNewberry

  1. P

    Are the number of microstates of a gas just equivalent to pressure

    Brilliant; thanks; that is a lot clearer now.
  2. P

    Are the number of microstates of a gas just equivalent to pressure

    I have just been thinking about this a little more and it turns out that volume does make a difference to the number of available microstates as multiatom collisions become less likely in a less dense substance wherein the momentum of two atoms in vector x might add up to produce a high value...
  3. P

    Are the number of microstates of a gas just equivalent to pressure

    Sorry for the basic confusion there. I has always imagined microstates visually - making the volume and locations of the particles an aspect of the calculations, whereas it is actually just about the distribution of energies according to one source I have just read and not about the volume. And...
  4. P

    Are the number of microstates of a gas just equivalent to pressure

    Sorry still confused. Let's say we have 100 molecules of gas in each of the differently sized boxes both with the same average molecular velocity I would have thought this would give the same temperature reading as interactions with a thermometer would be the same, though less frequent in the...
  5. P

    Avoiding a Wall with Circular Motion: A Physics Exercise

    Assume that you can apply the breaks to just before a skidding state and can also turn the car in such a way to maintain the wheels in a just before skidding state, then look at the force vectors working on the car and deduce the one which on average is bigger away from the wall throughout each...
  6. P

    Are the number of microstates of a gas just equivalent to pressure

    I am quite confused about this area. First entropy does not contain any reference to volume. So if we can theoretically set the entropy of A and B gas samples as the same but in different volumes. If A is in a larger volume it would be able to exhibit a larger number of microstates? Yet the...
  7. P

    Conservation of Energy Problem

    There is an interesting article here http://focus.aps.org/story/v18/st4 about a method for tunnelling light through usually opaque materials. Half way through they mention that one light ray becomes two: "When a light ray passing from glass into air strikes the interface at a...
Back
Top