PhysicalConstant.h

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#pragma once
 
namespace MaterialLib
{
namespace PhysicalConstant
{
constexpr double CelsiusZeroInKelvin = 273.15;
 
constexpr double IdealGasConstant = 8.3144621;
 
namespace MolarMass
{
constexpr double Water = 0.018016;  
 
constexpr double N2 = 0.028013;  
 
constexpr double O2 = 0.032;  
 
constexpr double Air = 0.02897;  
 
constexpr double H2 = 0.002016;  
}  // namespace MolarMass
namespace MolarMass {…}
 
namespace SpecificGasConstant
{
constexpr double WaterVapour = IdealGasConstant / MolarMass::Water;  // = 461.504;
}  // namespace SpecificGasConstant
namespace SpecificGasConstant {…}
namespace HenryConstant
{
constexpr double HenryConstantH2 = 7.65e-6;  
}  // namespace HenryConstant
namespace HenryConstant {…}
}  // namespace PhysicalConstant
namespace PhysicalConstant {…}
}  // namespace MaterialLib