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Region 1

100 MPa

Out of Regions

Region 3

Double

phase

c

Region 2

Helmholtz free energy

n, I and J see >>>

or

Pressure

or

Specific internal energy

or

Specific entropy

or

Spesific enthalpy

or

Specific isochoric heat capasity

or

Specific isobaric

heat capasity

Sound velocity

Structure of IAPWS-IF97: Region 3