Chem 151 1st Edition Exam # 1 Study Guide: Unit 1, Module 1, 2, 3 1) Burning paper vs Rusted nailsWhat changes? What stays the same?2) Give examples of intensive and extensive properties.3) What would happen if you blew up a balloon and immersed it in liquid nitrogen? What happens to the balloon? The nitrogen? What happens inside the balloon? 4) A sample of solid water at -20 degrees C is heated at a constant rate to 120 degrees C. Draw a graph of Temperature as a function of time and Energy as a function of time. What do you see?5) When does boiling point occur? What does it mean if a substance is volatile? Illustrate these concepts with a graph. 6) What steps would you follow to separate air? 7) If you had a mixture of hydrocarbons how would you go about separating them? 8) What are the three assumptions of the particulate model of matter? Module 2:9) Imagine you have a sample of water at the triple point ( T=276.14 K):- In which state of matter are the particles moving the fastest? Slowest? - Why are the moving the way they are?- How will speed of particles change as temperature changes? 10) What happens in the refrigeration cycle? Draw a graph with energy as a function of time. 11) How does pressure relate to Temperature, number of particles and Volume? Draw three graphs 1) P as a function of T 2) P as a function of Number of particle 3) P as a function of. 12) What happens to average kinetic energy of a system when temperature is decreased? What changes? What stays the same?13) As kinetic energy ________, potential energy ________?14) Define potential energy. 15) During a phase change does the average kinetic energy per particle change? Why? 16) What are the two most critical elements to a phase change that need to be analyzed? 17) According to “PEC” diagrams what is gas favored by? Liquid? What is favored at high and low T? Does gas or liquid have a higher boiling point? 18) How many substances are in pure air? Any elements, compounds or mixtures?19) What is the difference between a chemical, molecular and ionic compound?20) What would a compound gas look like? What would a elementary liquid look like? What would a solid mixture look like? What would a liquid mixture look like? What would a solid compound look like?21) How many phases are taking place in a can of soda? How many substances are there in this system? Of the substances which are elements, compounds or mixture? How would you separate these substances?Module 3:22) How can I get the same number of molecules in two different tanks that contain different types of gas?23) What is Avogadro’s number? What is this equivalent to? 24) Calculate the molar mass of Cl2? P4?25) Convert 0.283 grams/L to particles/ L?26) Convert 9 ppmv to mg/m^3? Convert 53 ppbv to mg/m^3?27) Estimate the number of O^3 molecules that go into your body every day? Module 428) What is the mass in grams of one Neon atom?29) Given information on a Mass Spectrometer give the how would you calculate the molar mass of the substance? 30) Given a Mass Spectrometer and Elementary Analysis find the empirical formula of the substance?31) Find the empirical formula for Tucson’s