At atmospheric pressure, pure water boils at 100c, and freezes at 0c. in this problem, we calculate how this changes for seawater. a) use the latent heat of vaporization and salinity to calculate the boiling temperature of seawater at atmospheric pressure. b) at atmospheric pressure, the latent heat of fusion for ice is 6.0kj/mol. use this information to calculate the freezing temperature of water. assume that when the solution freezes, it forms a phase of pure ice. c) in part (a), the boiling temperature is increased by the addition of salt. however, in part (b) the freezing temperature is decreased. using what you know about the entropy of mixtures, explain why this is the case.