Three Liquid Samples Of Known Masses Are Heated To Their Boiling Points With The Use Of A Heater Rated At 475 0 W Once 1 (303.34 KiB) Viewed 16 times
Three liquid samples of known masses are heated to their boiling points with the use of a heater rated at 475.0 W. Once the boiling points of each sample are reached, the samples are heated for an additional 6.07 min, which results in the vaporization of some of each sample. After 6.07 min, the samples are cooled and the masses of the remaining liquids are determined. The process is performed at constant pressure. The results are recorded in the table. Boiling point (°C) Initial mass (g) Final mass (g) Liquid C₂H5OH 78.3 512.7 326.52 C5H12 36.1 556.9 87.66 C₂H₂O 56.2 613.1 278.21 Calculate the molar enthalpy of vaporization, AH vap, and the molar entropy of vaporization, ASvap, for each sample. Assume that all of the heat from the heater goes into the sample. kJ AH vap of C₂H5OH: mol Enter numeric value J A.Svap of C₂H5OH: mol.K kJ AHvap of C5H12: mol
A.Svap of C5H12: AHvap of C₂ HO: A.Svap of C3H6O: J mol.K kJ mol J mol.K
Based on the calculated ASvap values, arrange the liquid samples in order from most ordered to least ordered. Most ordered Least ordered Answer Bank C₂H5OH C3H₂O C5H12
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