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4. The Dulong and Petit empirical relationship for the product of atomic mass and specific heat, (M)(C) 25, indicates that the specific heat is inversely proportional to the atomic mass or proportional to the number of moles of particles as with colligative properties. T a. Using the data in Appendix I for at least four metals, test the Dulong and Petit relationship. Is it accurate? A1-26-981539 x0.91= INST b. For use of the equation with molecules rather than atoms, the number 25 should be multiplied by the number of atoms per molecule. Is the value 4.184 joules/g deg. for water consistent with this oversimplified approach? Explain your answer (Note that there is a threshold temperature below which this approach will have significant error). c. Compared to metals, what two factors cause the specific heat of water to appear to be exceptionally high? VERDAF d. Does this concept work on other substances such as sodium chloride, potassium chloride, calcium chloride, aluminum chloride, carbon tetrachloride or methanol (CH,OH)? Explain your answer. (See Appendix 1 for specific heat data)