A Energy hypersurface in a phase space (statistical physics)

A
Thread starter daniel444
Start date Sep 29, 2022
Tags

Energy Phase Phase space Physics Space Statisical mechanics Statistical physics

Sep 29, 2022

daniel444

what is the reason for that the energy hypersurfaces in a phase space, which belong to systems with constant energy are closed? ( see picture )

Science news on Phys.org

Research team improves fuel cell durability with fatigue-resistant membranes
Apex predators not a quick fix for restoring ecosystems, 20-year study finds
Building images photon-by-photon to increase the information content provided by microscopes

Oct 1, 2022

anuttarasammyak

Gold Member

If not closed, there would be no border between higher energy region and lower energy region. No energy contour. No grad. No force.

Thread 'Condensate rate of water for an air conditioning cooling coil'

I need to calculate the amount of water condensed from a DX cooling coil per hour given the size of the expansion coil (the total condensing surface area), the incoming air temperature, the amount of air flow from the fan, the BTU capacity of the compressor and the incoming air humidity. There are lots of condenser calculators around but they all need the air flow and incoming and outgoing humidity and then give a total volume of condensed water but I need more than that. The size of the...

View full post »

Thread 'Why work is PdV and not (P+dP)dV in an isothermal process?'

Let's say we have a cylinder of volume V1 with a frictionless movable piston and some gas trapped inside with pressure P1 and temperature T1. On top of the piston lay some small pebbles that add weight and essentially create the pressure P1. Also the system is inside a reservoir of water that keeps its temperature constant at T1. The system is in equilibrium at V1, P1, T1. Now let's say i put another very small pebble on top of the piston (0,00001kg) and after some seconds the system...

View full post »