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in 100 words or more each with references and in text citations answer each of the 3 questions.
- Energy conservation refers to reducing energy consumption through using less of an energy service. Energy cannot be created or destroyed, but only changed from one form into another or transferred from one object to another. The change in energy of an object is due to the transformation and is equal to the work done on the object or by the object for the transformation. For example, when an object is at a height, a potential energy is stored by virtue of its height. When the same object is dropped the height decreases. But because of the reduction in height, the potential energy is not destructed but it is only transformed into kinetic energy as visible from its velocity during the fall.
- The quantity of heat is a measurement of the amount of heat that is present in a system. The formula of quantity of heat, q, is equal to the mass of substance, m, multiplied with the specific heat and the change in temperature. When the quantity of heat is negative - the system is depleted of its heat; however, if the quantity of heat is positive - then the system gains heat. I am thinking what will be the SI unit of quantity of heat.
There are two types of specific latent heat: vaporization and fusion. The specific latent heat of vaporization is defined as the quantity of heat energy that is necessary to raise one unit of weight (pounds or grams) with no change of temperature in the surroundings. Like the name implies, this specific latent heat quantifies the transfer of energy when a substance's state changes from liquid to gas or from gas to liquid. On the other hand, the specific heat of fusion is the quantity of heat that is necessary to raise one unit of weight without any change in temperature. This specific latent heat quantifies the transfer of energy when a substance's state changes from a solid to a liquid or from a liquid to a solid.