c101_f10_1103 - Energy transfer for physical processes For...

Info icon This preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Energy transfer for physical processes For physical processes, we will focus on kinetic energy and thermal energy . Nanoscale pictures relating kinetic molecular theory, kinetic energy, and thermal energy: Figures 6.5, 6.6, and p. 189. For chemical processes, we will additionally study how chemical potential energy relates to thermal energy. In CHEM 103, chemical potential energy will also be related to electrical energy. The two main concepts you need to apply are 1. conservation of energy 2. mole ratio The main units and conversions you need are 1. 1 calorie = 4.184 Joules, 1 cal = 4.184 J 2. kilo = 1000, 1 kilojoule = 1 kJ = 1000 J
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Chemistry 101 Fall 2010 2 Conservation of Energy Energy can neither be created nor destroyed. The total energy of the universe is constant. (Law of Conservation of Energy, First Law of Thermodynamics) Example : A hot bar of copper at 100 ° C is placed into cold water at 4.0 ° C. What is the final temperature of the bar and water? Internal energy of each substance (kinetic and thermal energy) Heating (heat) : the transfer of thermal energy between substances with different temperatures when they are in contact with each other.
Image of page 2
Chemistry 101 Fall 2010 3 Need to know how much energy is needed to
Image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern