What is ΔSsys for a melting phase transition at 10.2 °C for a compound that melts at 10.2 °C and the ΔHsys = 5.98 kJ mol-1 for this process?
What is ΔSsys for a melting phase transition at 10.2 °C for a compound that melts...
What is ΔSsys for a condensation phase transition at 40.6 °C for a compound that condenses at 40.6 °C and the ΔHsys = -88.1 kJ mol-1 for this process?
What is ΔSsys for a boiling phase transition at 105.5 °C for a compound that boils at 105.5 °C and the ΔHsys = 69.9 kJ mol-1 for this process? Express your answer in J mol-1 K-1.
What is ΔSsys for a freezing phase transition at 32.7 °C for a compound that freezes at 32.7 °C and the ΔHsys = -14.37 kJ mol-1 for this process? Express your answer in J mol-1 K-1.
What is ΔSsys for a freezing phase transition at 55.5 °C for a compound that freezes at 55.5 °C and the ΔHsys = -13.71 kJ mol-1 for this process? Express your answer in J mol-1 K-1.
What is the ΔSuniv for the following reaction at 25°C? N2(g) + 3H2(g) ⇌ 2NH3(g) ΔSsys = -197 J/K; ΔHsys = -91.8 kJ PLEASE SHOW WORK
Time: 15 minutes When a certain compound melts at P = Pº = standard pressure (1.000 105 Pa), the following quantities are measured: Trus(PO) = 183.2 K; AfusHº = 4.675 kJ/mol; Afus V° = 0.005879 L/mol What is the melting point, Tfus(P), at P = 1.000 x 106 Pa ?
OLLILEI UM ALLI LUUIU. Compound Melting point (°C) A Hus (kJ/mol) Boiling point (°C) AHvap (kJ/mol) HF -83.11 4.577 19.54 25.18 HCI -114.3 1.991 -84.9 17.53 HBO -86.96 2.406 -67.0 19.27 HI -50.91 2.871 -35.38 21.16 Using the data in the table, calculate AS tus and ASvap for HCL. Astus = AS = J/(K.mol) ASvap = J/(K.mol) Determine the entropy change when 5.70 mol HCI) melts at atmospheric pressure. AS = | J/K
7. Bromomethane melts at-93.6 °C. If its 4usHP = 5.98 kJ/mol, determine its Δfuss®.
3. (15 pts) Bi and Te.form the solid compound i2Te which melts congruently at about 600 c. Bi and Te melt at 300 and 450*C resperiveiy. Solid BiTe, is partially miscible at all 'temperatures with solid ai and is also partiaily miscible with solid Te at all temperatures . a) What is congruent melting? sto scale) the Bi-Te solid-iquid phase diagram and labe all regions. the cooling-curve for the liquid mixture that is 65%-rich in Te. b) Skete c) Sket,...
14. For bismuth, Bi, the heat of fusion at its normal melting point of 271 °C is 11.0 kJ/mol. The entropy change when 2.45 moles of solid Bi melts at 271 °C, 1 atm is J/K. For magnesium, Mg, the heat of fusion at its normal melting point of 649 °C is 9.0 kJ/mol. The entropy change when 1.72 moles of liquid Mg freezes at 649 °C, 1 atm is J/K