A beaker contains a mixture of ice and pure water at 0ᵒC. What happens to the temperature of the mixture as heat is added?

Question

Quizplus · Accepted Answer

When the mixture receives heat, the ice will first convert to liquid water while the temperature remains constant at 0ᵒC. This happens because the energy is being used to break the intermolecular forces holding the ice crystals together rather than increasing the temperature of the water. Once all the ice has melted, the temperature will start to rise as heat energy is used to increase the kinetic energy of the water molecules. Therefore, the temperature remains constant until the ice melts and then it begins to rise.

A Beaker Contains a Mixture of Ice and Pure Water