Final answer:
The boiling point of water increases with pressure; therefore, at 300 kPa it would be higher than 100°C. Flammability is a chemical property, whereas melting point, boiling point, and density are physical properties.
Step-by-step explanation:
The question being asked is about the boiling point of water at a specific pressure. Boiling point is the temperature at which the vapor pressure of a liquid equals the external pressure surrounding the liquid. The phase diagram of water indicates that as pressure increases, the boiling point also increases. At standard atmospheric pressure (1 atm or 101.325 kPa), water boils at 100°C. However, at a higher pressure of 300 kPa, the boiling point of water would be higher than 100°C.
Regarding Exercise 3.5.1B, which asks for a chemical property, the correct answer is a. flammability. Flammability is a chemical property because it involves a chemical reaction (combustion). Melting point, boiling point, and density are physical properties because they describe states or characteristics that do not involve changing the chemical identity of a substance.