2. A chemical plant has just perfected a process for manufacturing a revolutionary new drug. A large plant must be designed even before complete data are available. The research laboratory has obtained the following data for the drug. Boiling point at 101.3 kPa 250°C Vapor pressure at 230°C 55 kPa Density at 28°C and 101.3 kPa 1.316 g/mL Melting point at 101.3 kPa 122.4°C Solubility in water at 76°C 2.2/100 parts water by weight Molecular weight Heat capacity of liquid at 150°C Heat capacity of liquid at 240°C 122 2.09 kJ/(kg °C) 2.13 kJ/(kg °C) As a final purification step, the drug must first be vaporized, leaving nonvolatile impurities in the liquid phase, and the resulting pure vapor must be condensed in a condenser. Calculate the rate (in kg/hr) at which the drug can be vaporized at atmospheric pressure if the heat input to the vaporizer is 1000 kW. The temperature of the drug at the inlet to the vaporizer is 130°C. Assume no superheating of the vapor occurs. Hint: you may assume that the heat capacity of the liquid increases linearly with temperature and that the heat of vaporization is approximately constant over the temperature range 230°C to 250°C.

2. A chemical plant has just perfected a process for manufacturing a revolutionary new drug. A large plant must be designed even before complete data are available. The research laboratory has obtained the following data for the drug. Boiling point at 101.3 kPa 250°C Vapor pressure at 230°C 55 kPa Density at 28°C and 101.3 kPa 1.316 g/mL Melting point at 101.3 kPa 122.4°C Solubility in water at 76°C 2.2/100 parts water by weight Molecular weight Heat capacity of liquid at 150°C Heat capacity of liquid at 240°C 122 2.09 kJ/(kg °C) 2.13 kJ/(kg °C) As a final purification step, the drug must first be vaporized, leaving nonvolatile impurities in the liquid phase, and the resulting pure vapor must be condensed in a condenser. Calculate the rate (in kg/hr) at which the drug can be vaporized at atmospheric pressure if the heat input to the vaporizer is 1000 kW. The temperature of the drug at the inlet to the vaporizer is 130°C. Assume no superheating of the vapor occurs. Hint: you may assume that the heat capacity of the liquid increases linearly with temperature and that the heat of vaporization is approximately constant over the temperature range 230°C to 250°C.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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