A gas flows through a square conduit.  At one point along the conduit sides are 0.100m. the velocity is 7.55m/s, and the gas’s mass density is (for its particular pressure and temperature) 1.09kg/m3.  At a second point, the conduit sides are 0.250m and the velocity is 2.02m/s.  After finding the mass flow rate of the gas, what is the gas’s mass density (ρ) at the second point in kilogram per cubic-meter

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Diatomic Gas

Molecule, is a collection of two or more atoms together (which constitute the smallest observable unit) into a pure material. There are some ways to represent the structure of a molecule. Factor symbols represent atoms in Lewis structures, and dots represent electrons that accompany them. A pair of mutual electrons (covalent bond) may be represented by a single dash. The ball-and-stick model depicts the spatial structure of the atoms better.