(Mass transfer). In an experiment, a stagnant sample of water contains chlorine at a concentration of 50 ppm by weight. The local pressure and temperature are 100 kPa and 320 K, respectively. The...

(Mass transfer). In an experiment, a stagnant sample of water contains chlorine at a concentration of 50 ppm by weight. The local pressure and temperature are 100 kPa and 320 K, respectively. The concentration of chlorine is not uniform in the water, and at a particular location the chlorine mass fraction gradient is 100 m⁻¹
. Calculate the diffusive mass flux of chlorine at that location. Calculate the diffusive mass flux, if the temperature was increased to 400 K.