5. The boiling point of water is 96°C at 0865 atmosphere pressure, what is the v

Question

5. The boiling point of water is 96°C at 0865 atmosphere pressure, what is the vapor pressure (in torr) of water at this temperature? torr _ 6. Which one of the following is true? A highly volatile liquid, as opposed to a non-volatile liquid. a has a higher boiling point. b. has weaker intermolecular attractive forces c, has a higher heat of vaporization. d. none of the above is true 7. Regarding bonding in solids, match the following substances with the types of intermolecular bonding: (see your text) i. sodium iodide Icopper a covalent-network solids b. ionic solids c metallic solids d. molecular solids Sucrose graphite

Explanation / Answer

5) at boiling vapour pressure equal to atmospheric pressure , so VP = 0.865 atm , hence 0.865 x 760 = 657.4 torr

6) a highly volatile liquid will have weak intermolecular forces in it , due to which it volatility increases , b is correct

7) sucrose is a molecular solid , copper is a metallic solid , sodium iodide is ionic solid , graphite is a covalent network solids

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