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Fun physics

Phase Change

Amount of energy needed for phase change of water A lot of energy is needed to change the state of a substance. For our purpose I will use water. 1 Lb of liquid water @ 32° F takes 180 BTU to get to 212° F liquid water. 1 Lb of liquid water @ 212° F…

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Understanding Heat

Understanding  Heat   Heat energy or “heat”, is transferred in 3 different ways: Conduction: the process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature or of electrical potential between adjoining regions, without movement of the material. Different materials conduct heat at different rates – metals…

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Water vapor is lighter than air

Water vapor is lighter than air. A molecule of H2O (water) has an atomic weight of 18. [2 hydrogen atoms @ 1 ] =2  [one oxygen @ 16]  2+16 =18. Air is composed of approximately 78% N2 nitrogen [2 bonded atoms of nitrogen @14] = 28 and 21% O2 oxygen [two 2 bonded atoms of…

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