1) Isaac Newton in addition to being a famous physicist was also an avid alchemist. a) In his alchemy lab, Newton mixes 3.5 kg of lead initially at 550 K with 2 kg of lead initial 750 K inside a container. At equilibrium, he measures 4 kg of solid lead in the conta Determine whether this system was open or closed, and if open determine whether heat ent or left the system and calculate how much. Show your work. b) In order for the substance have the color of gold, Newton adds 4 kg sulfur to the container a equilibrium from part a). He seals the container so no heat can flow in or out to the outside environment which is at 20.5 C. At equilibrium the temperature inside the container is 450 Find the initial temperature and phase of sulfur. Show your work. c) Newton decides to test if his new material has the same properties as gold. To do this, he ad energy to 5 kg of the new material in solid phase initially at 1300K. Newton finds that after adding 18.9 kJ the temperature increases by 30 C and the material just starts to melt. After 188.4 kJ of more added energy, he finds 3 kg of his solid material in this container. Which properties of gold listed below are the same and which ones are different, if any, from Newt new material. Explain why. Useful constants: lead: T = 600 K: AH = 24.7 k/ke: c = 0.128_kl/Kkg (for both solid and liquid)