A tank containing liquid chlorine is used by a local water treatment plant. The plant uses chlorine gas (Cl2) which is supplied from the top of the tank through a 3-mm-ID pipe. The saturation vapor pressure of liquid chlorine at 298 K is 6.8 atm and the molecular weight of Cl2 is 70.09 g/mol

Consider the following release incident: Pipe supplying the gas breaks at the location where the pipe is welded to the tank. (a) Draw and completely label a diagram for this release incident. (b) Estimate the chlorine release rate for this incident (kg/s). (c) For the same release incident, estimate the chlorine concentration (in ppm) in the vicinity of the leak. Assume a ventilation rate of 30 m3/min and good ventilation. Would workers nearby be overexposed? Provide evidence to support your conclusion. (d) Using inherently safer design (IDS) principles, list recommendations for improving this operation. Your list should include a description of each recommended action and the IDS principle(s) it addresses.