The following data were obtained for the adsorption of acetone on charcoal from an aqueous solution at 18°C. Y (millimoles/g) C (millimoles/liter) 0.208 2.34 0.618 14.65 1.075 41.03 1.5 88.62 2.08 177.69 2.88 268.97 a) Find the constants k and n of the Freundlich equation. b) Find the constants a and b in the Langmuir equation. c) d) Which of the isotherm fit the data best? Find the constants k and n in the Temkin isotherm.

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Units and Dimensions

Dimensions are the basic concepts of the measurement of quantities. Units are the means of expressing the dimensions. For instance, an area has a dimension of L2 and a unit of m2.