Question

1. Rank these substances in order of increasing noncovalent intermolecular attractions. For each substance, name the types of intermolecular attractions that occur. A) CH.CH2CHCH B) CH.CH C) CH,CH2CH2OH D) CH,CHOCH 2. The chlorofluorocarbon CC13F has a vaporization enthalpy of 24.8 kJ/mol. Calculate the heat energy transfer required to vaporize 1.0 kg of the compound.

Answer 1

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- A) CH2CH2CH2CH3 Contoure intermolecular London dispersism force B) CH₂ CH₂ contain intermolecular London dispersion force C) CHCH₂ CH₂ Oh contain dipole -dipole interaction and Hydrogen bonding d) CH₂ CH2OH, contain dipole - dipole interaction. Order of increasing intermolecular attraction (non covalent) C GH OH A CHO CH3 CH₂ CH2 Crizcez chez contain maximum hon covalent intermolecular -mole of Califa 1 kg attration 1000g - 137. 5Jm/mol Given i mole required 24.8kJ/mol so 7,273 mole required 24.887273K J = 180.37 kJ Scared with CamScanner -3.273 mole