The ``physical property estimation method'' was born in chemical engineering because chemical engineering is a specialized field that deals with a wide range of substances. For engineers engaged in solving environmental and energy problems and developing new products. This paper explains methods for estimating heat capacity, latent heat of vaporization, and thermal conductivity as methods for estimating thermophysical properties. As shown in table 1, it is possible to estimate the physical properties of pure organic compounds using current estimation methods. Physical property estimation method in Step (1) 1. Give priority to measured values if available. 2. Since Excel's computational power can be utilized, estimation methods that require a large amount of calculation were also adopted with an emphasis on accuracy.
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