For the following matching choose only one for the type of solid or the main intermolecular attraction: (choose one answer per question) CO2 (s)  metallic solid dipole forces london forces ionic forces hydrogen bonds network covalent solid molecular solid I2                                                                                     metallic solid dipole forces london forces ionic forces hydrogen bonds network covalent solid molecular solid     H2S                                                                        metallic solid dipole forces london forces ionic forces hydrogen bonds network covalent solid molecular solid

The statements in the following multiple choices deal with various aspects of the relationship between vapor pressure and intermolecular forces. Choose the statement which is false. a) Volume has no effect on the vapor pressure of water. b) At a given temperature liquid HCl has higher vapor pressure than liquid HF. c) CHBr3 is less volatile than CHCl3. d) At a given temperature solid SF6 has higher vapor pressure than solid I2. e) The average kinetic energy of boiling water molecules is the same on a mountaintop as it is at sea level.

Part A) What is the relationship between the intermolecular forces in a liquid and its vapor pressure? a) They are not related at all (b)  The stronger are the IMF the lower is vapor pressure (c)  The stronger are the IMF the higher is vapor pressure (d)  It depends on the temperature at which those liquids all are Part B) What is the relationship between the intermolecular forces in a solid and its melting point? (a)  They are not related at all (b)  The stronger are the IMF the lower is melting point (c)  The stronger are the IMF the higher is melting point (d)  It depends on the atmospheric pressure atwhich these solids  all are

Consider the two molecules CH4 and C6H12.  At room temperature and 1 atm pressure, CH4 is a gas and C6H12 is a liquid.  Why is C6H12 a liquid instead of a gas like CH4?   A C6H12 has hydrogen bonding   B C6H12 has greater dispersion forces   C CH4 has ion - ion forces   D C6H12 has ion - ion forces   E CH4 has dipole - dipole forces