Why does water freeze faster than coke and apple juice?

Water does not freeze faster than coke or apple juice. In fact, water has the highest specific heat capacity of all common liquids, meaning that it takes more energy to raise the temperature of water than it does for most other liquids. This is why water is often used as a coolant in engines and other machinery.

Specific Heat Capacity

The specific heat capacity of a substance is defined as the amount of energy required to raise the temperature of one gram of the substance by one degree Celsius. The specific heat capacity of water is 4.186 J/g°C, which means that it takes 4.186 Joules of energy to raise the temperature of one gram of water by one degree Celsius.

The specific heat capacity of coke is about 3.3 J/g°C and the specific heat capacity of apple juice is about 3.9 J/g°C. This means that it takes less energy to raise the temperature of one gram of coke or apple juice by one degree Celsius than it does to raise the temperature of one gram of water by one degree Celsius.

Freezing Point

The freezing point of a liquid is the temperature at which the liquid turns into a solid. The freezing point of water is 0°C, the freezing point of coke is about -2°C, and the freezing point of apple juice is about -4°C.

Because water has a lower freezing point than coke or apple juice, it will freeze at a lower temperature. However, because water has a higher specific heat capacity than coke or apple juice, it will take longer to reach the freezing point.

In conclusion, water does not freeze faster than coke or apple juice because it has a higher specific heat capacity and does not take longer to reach the freezing point.