2.45. WP The relationship between the pressure P and volume V of the air in a cylinder during the upstroke of a piston in an air compressor can be expressed as PVk = C where k and C are constants....

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Extracted text: 2.45. WP The relationship between the pressure P and volume V of the air in a cylinder during the upstroke of a piston in an air compressor can be expressed as PVk = C where k and C are constants. During a compression test, the following data are taken: P(mm Hg) 760 1140 1520 2280 3040 3800 V(cm3) 48.3 37.4 31.3 24.1 20.0 17.4 Determine the values of k and C that best fit the data. (Give both numerical values and units.) 2.46. WP In modeling the effect of an impurity on crystal growth, the following equation was derived: G – GL Go – G KLСт where C is impurity concentration, GL is a limiting growth rate, G, is the growth rate of the crystal with no impurity present, and KL and m are model parameters. -3 In a particular experiment, Go = 3.00 x 10- mm/min, and G1, = 1.80 × 10¬³ mm/min. Growth rates are measured for several impurity concentrations C (parts per million, or ppm), with the following results: C(ppm) 50.0 75.0 100.0 125.0 150.0 G(mm/ min) × 10° 2.50 2.20 2.04 1.95 1.90 -3 (For example, when C = 50.0 ppm, G = 2.50 × 10° mm/ min). a. Determine K, and m, giving both numerical values and units. b. A solution is fed to a crystallizer in which the impurity concentration is 475 ppm. Estimate the expected crystal growth rate in (mm/min). Then state why you would be extremely skeptical about this result. Answer 2.47. WP Aprocess instrument reading, Z(volts), is thought to be related to a process stream flow rate V(L/s) and pressure P(kPa) by the following expression: Z = av p¢ Process data have been obtained in two sets of runs-one with V held constant, the other with P held constant. The data are as follows: Point 2 3 4 5 6 7 V (L/s) 0.65 1.02 1.75 3.43 1.02 1.02 1.02