Answer the following questions regarding gallium using the data given below. Molar heat capacity of Gallium 25.86 J/K x mol Heat of fusion 5.59 kJ/mol Heat of vaporization 256 kJ/mol Melting point 303 K a. How much energy in kJ is required to evaporate 3 moles of Gallium originally at 273 K? b. How much energy is required to melt 3 moles of Gallium originally at 273 K? c. Use the principles of bonding to explain why the heat of vaporization is different than the heat of fusion

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Crystal Lattices and Unit Cell

Consider a crystal. The regular and repeating pattern of constituent particles is the most distinguishing feature of crystalline solids. A crystal lattice is formed when these particles are replaced with representative points. The three-dimensional arrangement of constituent particles is known as a crystal lattice. Unit cell is that the smallest portion of a space lattice which when repeated in several directions, generate the whole lattice. Unit cell is a building block of a lattice. It is the smallest unit of cell.