How much heat is required to raise the temperature of 215 g CH 3 OH(l) from 20.0
Question:
How much heat is required to raise the temperature of 215 g CH3OH(l) from 20.0 to 30.0 °C and then vaporize it at 30.0 °C? Use data from Table 12.4 and a molar heat capacity of CH3OH(l) of 81.1 J mol-1K-1.
Table 12.4
Transcribed Image Text:
TABLE 12.4 Intermolecular Forces and Enthalpies of Vaporization at 298 Ka Liquid Dimethyl ether, (CH₂)₂O Diethyl ether, (CH₂CH₂)₂0 Methanol, CH₂OH Ethanol, CH₂CH₂OH Water, H₂O μ, Debye α, 10-25 cm³ 1.30 52.9 1.10 1.70 1.69 1.85 102 32.9 54.1 14.5 % Dispersion % Dipole 84.6 15.4 96.3 3.7 47.6 42.4 69.8 30.2 13.8 86.2 AvapH, kJ mol-1 18.5b 27.1 37.4 42.3 44.0 Boiling Point, °C -24.8⁰ 34.5 64.6 78.3 100
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Related Book For
General Chemistry Principles And Modern Applications
ISBN: 9780132931281
11th Edition
Authors: Ralph Petrucci, Jeffry Madura, F. Herring, Carey Bissonnette
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