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Environmental Fate and Transport of Solvent-Stabilizer Compounds
Published in Thomas K.G. Mohr, William H. DiGuiseppi, Janet K. Anderson, James W. Hatton, Jeremy Bishop, Barrie Selcoe, William B. Kappleman, Environmental Investigation and Remediation, 2020
Thomas K.G. Mohr, James Hatton
The dimensionless form of the Henry's law constant, noted as HC, is obtained by converting gas concentrations from partial pressures in atmospheres to moles per cubic meter. The ideal gas law relates pressure, volume, temperature, and number of moles: nV=PRT,HC=HRT,
Fluid Power Principles
Published in Anton H. Hehn, Fluid Power Troubleshooting, 1995
From his investigation and experiments, a scientist named Charles gave his name to the other principal law—together with Boyle’s—which makes up the “ideal gas law.” Charles’s law states that “with a constant volume, absolute pressure is directly proportional to absolute temperature.” Charles’s law is involved when you are cautioned against throwing empty aerosol cans into a fire. As the remaining gas in the can is heated, the pressure might increase sufficiently to explode the container.
Engineering and Scientific Calculations
Published in David E. Clough, Steven C. Chapra, Introduction to Engineering and Scientific Computing with Python, 2023
David E. Clough, Steven C. Chapra
There are common constants used in calculations in chemistry, physics and engineering. One of these is the universal gas constant, R. This constant is employed to relate amount, temperature, pressure, and volume of a gas and appears in the ideal gas law as PV=nRT
Sensitivity to luminosity, centrifugal force, and boundary conditions in spherical shell convection
Published in Geophysical & Astrophysical Fluid Dynamics, 2020
P. J. Käpylä, F. A. Gent, N. Olspert, M. J. Käpylä, A. Brandenburg
Our simulation setup is similar to that used in Käpylä et al. (2019) with a few variations that will be explained in detail. We solve a set of fully compressible hydromagnetics equations where is the magnetic vector potential, is the velocity, is the magnetic field, η is the magnetic diffusivity, is the permeability of vacuum, is the current density, is the advective time derivative, ρ is the density, ν is the kinematic viscosity, p is the pressure, and s is the specific entropy with , where and are the specific heats at constant volume and pressure, respectively. The gas is assumed to obey the ideal gas law, , where is the gas constant. The rate of strain tensor is given by where the semicolons refer to covariant derivatives (Mitra et al.2009). The acceleration due to gravity, and the Coriolis and centrifugal forces are given by where N m2 kg−2 is the universal gravitational constant, kg is the solar mass, is the angular velocity vector, where is the rotation rate of the frame of reference, is the radial coordinate, and the corresponding radial unit vector. The parameter is used to control the magnitude of the centrifugal force.