The oxidation of ammonia is to be carried out over platinum gauze. the molar flow rate of ammonia is 10 mol/min at a temperature of 500 k and a pressure of 202.6 kpa. is one 250-mesh screen 10 cm in diameter sufficient to achieve 60% conversion? the wire diameter is 0.044 mm. assume 25% excess air, and ignore the effects of volume changes on the reynolds number.

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.