* 7.23 How much heat is required to raise the temperature of a 25.00 kg block of ice from -65°C to 0°C? How much additional heat is required to melt the block of ice? * 7.24 You apply 14.0 MJ of heat to a 25.00 kg block of ice at -65°C. What will be the final temperature of the ice? If it begins to melt, how much of the ice melts? .. .* 7.25 How much heat is released from 1.0 kg of cadmium whose temperature lowers from 50.0°F to 20.0°F? 7.26 How much heat is released from 1.0 kg of iron whose temperature lowers from 50.0°F to 20.0°F? .. 7.27 You pour 7.0 kg of water at 85°C into a 2.0 kg glass pitcher at 12°C. What is the final temperature of the water? .... ... 7.28 How many kg of ice at temperature 0°C are required to lower the tem- perature of 10.0 kg of ethyl alcohol from 78°C to 0°C? ...7.29 A 100.0 kg block of silicon has a temperature of 80.0°C when it is placed in 70.0 kg of water at 0.0°C. What is the final temperature of the water? ... 7.30 A 4000.0 kg block of silicon has a temperature of 150.0°C when it is placed in 70.0 kg of water at 0°C. How much of the water will evaporate? 7.31 Can a thermodynamic process ever be isothermal and adiabatic? Why or .. why not? 7.32 Can a thermodynamic process ever be isovolumetric and isobaric? Why .. or why not?

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Latent heat and phase change

A physical process in which a conversion among the basic states or phases of matter, i.e., solid, liquid, and gas takes place under the effect of a certain temperature and pressure is referred to as a phase change. Generally, the phase change of a substance occurs when heat transfer takes place between the substance and its surroundings. Based on the direction in which heat transfer takes place, different types of phase changes can occur.

Triple Point of Water

The branch of physics in which observer deals with temperature related properties is called thermodynamics.

Boiling Point of Water

Everyday examples of boiling is, boiling milk, heating water. One would have observed that when we heat water it goes through various stages and at one point bubbles show in water, and water keeps splashing with bubbles bursting, we in layman terms say that water is boiling.  

Freezing Point of Water

In general, the freezing point of water is 0° Celsius, or 32° Fahrenheit. This is the temperature at which water will ordinarily change from its liquid state to its solid state (ice). However, there are certain conditions that can affect the freezing point of water. For example, a liquid may be supercooled or contain impurities so that it does not freeze at the ordinary freezing point.