The diffusivity of chloroform in air was measure using an arnold cell at 298 k and 1 atm. the liquid density of chloroform at 298b k is 1.48 g/cm3 and its vapor pressure at 298 k is 2.67 x104 pa. initially, the liquid chloroform surface was 7.4 cm from the top of the tube, and after 10 hours the liquid surface dropped to 6.96 cm. if the concentration of chloroform is zero at the top of the tube, what would the gas diffusion coefficient of chloroform in air?