1. Which of the following factors influences the higher vaporization tendency of a liquid compared to another liquid? A. higher intermolecular forces B. larger extent of intermolecular H-bonding C. lower vapor pressure D. higher temperature 2. Which of the following has the highest enthalpy of vaporization (∆Hvap)? A. Dichloromethane (CH2Cl2) B. Methane (CH4) C. Methanol (CH3OH) D. Methanediol (HO-CH2-OH)
1. Which of the following factors influences the higher vaporization tendency of a liquid compared to another liquid?
A. higher intermolecular forces
B. larger extent of intermolecular H-bonding
C. lower vapor pressure
D. higher temperature
2. Which of the following has the highest enthalpy of vaporization (∆Hvap)?
A. Dichloromethane (CH2Cl2)
B. Methane (CH4)
C. Methanol (CH3OH)
D. Methanediol (HO-CH2-OH)
3. Which of the following is TRUE?
A. The boiling point of H2O is higher in mountains compared to sea level.
B. The vapor pressure of H2O is equal at 25 ºC and 99 ºC.
C. At 300 K, the vapor pressure of H2O (18 g/mol) is greater than CH3OH (32 g/mol).
D. The magnitude of the enthalpy of vaporization of H2O is larger than its enthalpy of fusion.
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