The graph shows the temperature of 1kg samples of three materials, A, B, and C, as they are heated. Heating occurs at a constant rate.

If material A starts to melt at 60 ^oC. At that point, the line on the graph will __________.

The graph shows the temperature of 1kg samples of three materials, A, B, and C, as they are heated. Heating occurs at a constant rate.

Which material has molecules with the highest average kinetic energy after 40 s of heating?

A 45.0-kg sample of ice is at 0.00 ^oC. How much heat is needed to melt it? For water L_f =334,000 J/kg and Lv =2.256×10⁶ J/kg.

A system consists of an ice cube floating in a glass of water. The entire system is at 0 ^oC. Thermal energy is then added slowly to the system, causing half of the ice to melt. What can be said about the resulting temperature of the system?

The heat energy required to change 1 kg of a substance from a solid to a liquid state at the same temperature is called ____

What is the thermal energy removed to convert 0.5 kg of water at 0 ^oC to ice at 0 ^oC ?