Water is densest at4℃ Water When the temperature of a given is increased ∞800402 Liquid water its molecules vibrate 0016 Temperature(C) faster and moⅴe 10014 farther apart. So the 10012 substance expands 10008 This is the case in all ihO three phases of water 10000 apart from the liquid water from0-4℃C.The Liquid water below 4C is bloated with ice crystals reason IS“ice-like UPon warming the crystals collapse, suiting in a smaller volume for the crystal structure starts liquid water. Above 4'C, liquid water expands as it is heated because of greater molecular motion to form at4℃. Figure 8.11 Between o/C and 4'C, the volume of liquid water decreases as the tempera- increases as its temperature increases. The volumes shown here are for a 1-gram sampleWater is densest at 4℃ When the temperature of a given is increased, its molecules vibrate faster and move farther apart. So the substance expands. This is the case in all three phases of water, apart from the liquid water from 0-4℃. The reason is “ice-like” crystal structure starts to form at 4℃