Question

just part A

If the shown list of wastes are stored in containers in a common area Reactivity Group No (RGN) 2, 24 Waste Name Oxidizing mineral acids, toxic metal compounds Cyanides Toxic metal compounds Halogenated organics Aromatic hydrocarbons Phenols Aromatic hydrocarbons Organophosphates Saturated aliphatic hydrocarbons Caustics Water reactive compounds Toxic metal compounds Caustics 8 1. Determine the minimum number of separate storage areas required to provide safe segregation of the waste stream and identify which wastes should be stored in each area 24 17 16 31 16 32 29 10 107 24 10 2. Identify all possible options if more than one option Clearly state or demonstrate the rationale (approach and logic) that led to your conclusions. Include excel spreadsheet into your pdf solution. 3.

Answer 1

we address a simple conceptual question, namely, when two molecules A and B interact to form the complex AB, how large is the entropy change as a result of this interaction? The free energy has the generic form

G=H-TS,

where H is the enthalpy and S is the entropy.

We see that in a simple case in which there is no enthalpy change, the entire free energy balance is dictated by entropy. If a reaction increases the entropy this means there is a corresponding negative free energy change, signaling the direction in which reactions will spontaneously proceed. A deep though elusive insight into these abstract terms comes from one of the most important equations in all of science, namely,