# Q 3 Ninety-eight per cent sulphuric acid is pumped at 4.5 tonne/hour through a 25 mm diameter pip...

Q 3 Ninety-eight per cent sulphuric acid is pumped at 4.5 tonne/hour through a 25 mm diameter pipe, 30 m long to a reservoir 12 m higher than the feed point. Calculate the pressure drop in the pipeline. It is given that the viscosity of acid is 25 mN.s/m2 and the density of acid is 1840 kg/m3 and the roughness of the pipe is 0.05mm. Recalculate the pressure drop if the roughness of the pipe is 0.5 mm.

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