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18 Nov 2019
1. Which member in each pair has the larger dispersion forces: a H2O or H2S b CO, or CO c,SiH or GeH, 2. H Te has a high boiling point than SnH Why? Do any of these substances exhibit hydrogen bonding? Explain. 3. Identify the type or types of intermolecular forces present in each substance and then select the substance in each pair that has the higher boiling point: (a) propane CH, or n-butane CHIO (b) diethyl ether CH CHzoCH2CH) or 1-butanol CH CH,CH,CH,OH (c) sulfur dioxide SO or sulfur trioxide SO (d) phosgene Cl coor formaldehyde H2CO 4. Ethanol (C HSOH) melts at-114 oC and boils at 78 0C. The enthalpy of fusion of ethanol is 5.02 KJ/mol, and its enthalpy of vaporization is 38.56 KJ/mol. The specific K, respectively. a. How much heat is required to convert 42.0g of ethanol at 35°C to the vapor phase at 78 o? b. How much heat is required to convert the same amount of ethanol at -155 C to the vapor phase at 78 C?
1. Which member in each pair has the larger dispersion forces: a H2O or H2S b CO, or CO c,SiH or GeH, 2. H Te has a high boiling point than SnH Why? Do any of these substances exhibit hydrogen bonding? Explain. 3. Identify the type or types of intermolecular forces present in each substance and then select the substance in each pair that has the higher boiling point: (a) propane CH, or n-butane CHIO (b) diethyl ether CH CHzoCH2CH) or 1-butanol CH CH,CH,CH,OH (c) sulfur dioxide SO or sulfur trioxide SO (d) phosgene Cl coor formaldehyde H2CO 4. Ethanol (C HSOH) melts at-114 oC and boils at 78 0C. The enthalpy of fusion of ethanol is 5.02 KJ/mol, and its enthalpy of vaporization is 38.56 KJ/mol. The specific K, respectively. a. How much heat is required to convert 42.0g of ethanol at 35°C to the vapor phase at 78 o? b. How much heat is required to convert the same amount of ethanol at -155 C to the vapor phase at 78 C?
Lelia LubowitzLv2
30 Jan 2019