Compound Chemical formula Hvap (kJ⋅mol−1) Boiling point (K) Hfus(kJ⋅mol−1) chloromethane CH3Cl 21.40 249.06 6.43 water H2O 40.65 373.15 6.01 hydrogen sulfide H2S 18.67 213.60 18.67 1. Trouton's rule states that the molar enthalpy of vaporization of a liquid that does not have strong molecular interactions such as hydrogen bonding or ion‑ion attractions is given by Hvap=(85 J⋅K-1⋅ mol-1)Tb Where Tb is the normal boiling point of the liquid in kelvins. Apply Trouton's rule to estimate the value of Hvap for these compounds: chloromethane: Hvap= ? kJ/mol water: Hvap= ? kJ/mol hydrogen sulfide: Hvap = ? kJ/mol
Compound Chemical formula Hvap (kJ⋅mol−1) Boiling point (K) Hfus(kJ⋅mol−1) chloromethane CH3Cl 21.40 249.06 6.43 water H2O 40.65 373.15 6.01 hydrogen sulfide H2S 18.67 213.60 18.67 1. Trouton's rule states that the molar enthalpy of vaporization of a liquid that does not have strong molecular interactions such as hydrogen bonding or ion‑ion attractions is given by Hvap=(85 J⋅K-1⋅ mol-1)Tb Where Tb is the normal boiling point of the liquid in kelvins. Apply Trouton's rule to estimate the value of Hvap for these compounds: chloromethane: Hvap= ? kJ/mol water: Hvap= ? kJ/mol hydrogen sulfide: Hvap = ? kJ/mol
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Chapter6: Thermochemistry
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| Compound | Chemical formula | Hvap (kJ⋅mol−1) | Boiling point (K) | Hfus(kJ⋅mol−1) |
|---|---|---|---|---|
| chloromethane | CH3Cl | 21.40 | 249.06 | 6.43 |
| water | H2O | 40.65 | 373.15 | 6.01 |
| hydrogen sulfide | H2S | 18.67 | 213.60 | 18.67 |
1. Trouton's rule states that the molar enthalpy of vaporization of a liquid that does not have strong molecular interactions such as hydrogen bonding or ion‑ion attractions is given by
Hvap=(85 J⋅K-1⋅ mol-1)Tb
Where Tb is the normal boiling point of the liquid in kelvins.
Apply Trouton's rule to estimate the value of Hvap for these compounds:
chloromethane: Hvap= ? kJ/mol
water: Hvap= ? kJ/mol
hydrogen sulfide: Hvap = ? kJ/mol
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