The rate at which heat is generated inside a chromatography column from friction of

Chapter 24, Problem 24-21

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The rate at which heat is generated inside a chromatography column from friction of flowing liquid is power (watts, W J/s) volume flow rate (m3 /s) pressure drop (pascals, Pa kg/[m s 2 ]). (a) Explain the analogy between heat generated in a chromatography column and heat generated in an electric circuit (power current voltage). (b) At what rate (watts J/s) is heat generated for a flow of 1 mL/min with a pressure difference of 3 500 bar between the inlet and outlet? You will need to convert mL/min to m3 /s. Also 1 bar 105 Pa.

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