A mixture of ideal gases consists of 3 kg of nitrogen and 5 kg of carbon dioxide at a pressure of 3 bar and a temperature of 20°C. Find (i) the mole fraction of each constituent, (ii) the equivalent molecular weight of the mixture, (iii) the equivalent gas constant of the mixture, (iv) the partial pressures and partial volumes, (v) the volume and density of the mixture, and (vi) the c, and c, of the mixture. If the mixture is heated at constant volume to 40°C, find the changes in internal energy, enthalpy and entropy of the mixture. Find the changes in internal energy, enthalpy and entropy of the mixture if the heating is done at constant pressure. Take y : for CO, = 1.286 and N2 = 1.4. [Ans. (i) 0.485, 0.515; (ii) 36.25 kg/kg mole ; (iii) 0.229 kJ/kg K ; (iv) 1.455 bar, 1.545 bar; 0.87 m2, 0.923 m3 ; (v) 1.79 m³, 4.46 kg/m³ ; (vi) 0.92 kJ/kg K, 0.69 kJ/kg K ; 110.4 kJ, 147.2 kJ, 0.368 kJ/kg K ; 0.49 kJ/kg K]

A mixture of ideal gases consists of 3 kg of nitrogen and 5 kg of carbon dioxide at a pressure of 3 bar and a temperature of 20°C. Find (i) the mole fraction of each constituent, (ii) the equivalent molecular weight of the mixture, (iii) the equivalent gas constant of the mixture, (iv) the partial pressures and partial volumes, (v) the volume and density of the mixture, and (vi) the c, and c, of the mixture. If the mixture is heated at constant volume to 40°C, find the changes in internal energy, enthalpy and entropy of the mixture. Find the changes in internal energy, enthalpy and entropy of the mixture if the heating is done at constant pressure. Take y : for CO, = 1.286 and N2 = 1.4. [Ans. (i) 0.485, 0.515; (ii) 36.25 kg/kg mole ; (iii) 0.229 kJ/kg K ; (iv) 1.455 bar, 1.545 bar; 0.87 m2, 0.923 m3 ; (v) 1.79 m³, 4.46 kg/m³ ; (vi) 0.92 kJ/kg K, 0.69 kJ/kg K ; 110.4 kJ, 147.2 kJ, 0.368 kJ/kg K ; 0.49 kJ/kg K]

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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