Final answer:
The density of water changes with temperature due to thermal expansion properties. The density of water at 4°C is 1.00x10³ kg/m³, but information to calculate density at 98°C is not provided.
Step-by-step explanation:
The density of water changes with temperature due to its thermal expansion properties. At 4°C, the density of water is 1.00x10³ kg/m³. As the temperature increases to 98°C, the density of water decreases.
However, you haven't provided the required information to calculate the density of water at 98°C. The density of water at different temperatures can be plotted on a graph, such as Figure 1.8 or Figure 13.12, to observe the trend and estimate the density at 98°C.