PHYS 111 Laboratory - Pre-lab #12 (SPECIFIC HEAT AND HEAT OF FUSION) Student Name: Lab Day and Time: Due at the beginning of lab. All answers must be legibly handwritten for credit. Show all work. References: lab manual, textbook Ch. 12.5. 1) (lab manual, Ch. 12.5) If you add heat to two different materials that have the same mass, will the sample with a higher specific heat rise in temperature more than the lower specific heat sample? Assume that neither material changes phase. Explain. 2) (lab manual, Eq. 12.24) Write down an equation for the heat needed to produce a temperature change AT for a mass M with a specific heat c. Identify all variables and SI units. 3) (lab manual, Eq. 12.24, example 12.14) What is the specific heat of a 3.0 kg metal sample that changes temperature 5.0 K when 13,470 J of heat are added to it? What is the metal? 4) (lab manual, Ch. 12.5) If you add heat to two different solid materials at their melting temperature that have the same mass, will the sample with a higher heat of fusion require more (or less) heat to change phase to a liquid? Does a sample's temperature change during the transformation? Explain. 5) (lab manual, Eq. 12.26) Write down an equation for the heat needed to melt a substance of mass M with a heat of fusion of Lf. Identify all variables and units. 6) (lab manual, Eq. 12.26, example 12.17) What is the heat of fusion for a 10.0 kg sample of metal that requires adding 1.1 x 10' J to melt it? What is the metal