β = - (1 / ρ)(∂ρ/∂T)ρ const
where
ρ density T Temperature
β measures the fractional decrease in fluid density as temperature increases at constant pressure.
... 26 - Ancel Keys, scientist February 1 - S. J. Perelman[?], humorist, author February 4 - MacKinlay Kantor[?], historian (+ 1977) February 5 - Walter Gross[?], ...