After the initial experimental tests, membrane 1 has been selected to be applied to the industrial process (see below). In the industrial process, 1000 kg h l of the aqueous solution of salt containing 35 wt% of salt and 7 wt% of impurities are used (stream 1). The first step of the process is an evaporation where part of the water in stream 2 is removed as stream 3. The flow rate of water in stream 3 is 500 kg h-1. The stream leaving the evaporator (stream 4) has a flow rate of 960 kg h1 and enters the membrane 1. The membrane generates a more diluted aqueous solution of salt (stream 5) and a concentrated aqueous solution of salt (stream 6). Knowing that stream 5 contains 34.8 wt% of water and 37 wt% of salt, how much is the flow rate of salt in stream 2 in kg h-1? Use the mass fractions with 3 decimals in all your calculations. 5 3 6 4 2. 1 Evaporator Membrane 1