Question 4 Given the ultimate/gravimetric analysis of coal as follows: C-81.95%, H2=4.63%6, S-0.96%6, N2 -1.39%6, 02-5.7596, Ash-6.0996, Moisture - 3.05% Using ash and moisture free analysis. Determine the; mass of the wet flue gas

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A:

Properties of Pure Substances

A substance with fixed chemical composition throughout is called a pure substance like water, air, and nitrogen. A pure substance does not have to be a single element or compound. A mixture of two or more phases of a pure substance is also a pure substance as long as the chemical composition is the same for all phases. These substances mainly have a constant/ uniform composition. The substances also have fixed boiling and melting points. A pure substance takes part in a chemical reaction to form predictable products.