PhyCalc quantity water vapor permeance info

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The SI unit for water vapor permeance is: kg/(s·m^‌2·Pa) (kilogram per second per square meter per pascal)
The dimension of water vapor permeance is L^‌-1 T.
Water vapor permeance is the 2nd derivative of preseleration with respect to time.
Water vapor permeance is dimensionally equal to presement.
Water vapor permeance is the reciprocal of speed.