Copper melts at 1083°C. Droplets of liquid Cu had been supercooled to 847°C before isothermal solidification occurred. 1. Calculate the enthalpy change of the system associated with the isothermal solidification of 1 mole of supercooled copper at 847°C. 2. Calculate entropy change of the system associated with the isothermal solidification of 1 mole of supercooled copper at 847°C. 3. Calculate the entropy change of the surroundings associated with the isothermal solidification of 1 mole of supercooled copper at 847°C. 4. Calculate the total entropy change (system and surrounding) for isothermal solidification of supercooled copper at 847°C. Comment on the results. At 1083°C, AHL-s = -12,958- L→S Cp (Liquid Cu) = 31.35 mole J mole.K Cp (Solid Cu) = 22.61 + 6.27 × 10-³T ) J mole.K

Copper melts at 1083°C. Droplets of liquid Cu had been supercooled to 847°C before isothermal solidification occurred. 1. Calculate the enthalpy change of the system associated with the isothermal solidification of 1 mole of supercooled copper at 847°C. 2. Calculate entropy change of the system associated with the isothermal solidification of 1 mole of supercooled copper at 847°C. 3. Calculate the entropy change of the surroundings associated with the isothermal solidification of 1 mole of supercooled copper at 847°C. 4. Calculate the total entropy change (system and surrounding) for isothermal solidification of supercooled copper at 847°C. Comment on the results. At 1083°C, AHL-s = -12,958- L→S Cp (Liquid Cu) = 31.35 mole J mole.K Cp (Solid Cu) = 22.61 + 6.27 × 10-³T ) J mole.K

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter16: Thermodynamics: Directionality Of Chemical Reactions

Section: Chapter Questions

Problem 93QRT: The standard molar entropy of iodine vapor, I2(g), is 260.7 J Kl mol-1 and the standard molar...

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