PPT-Heat Energy

Temperature Made by Ms Priya Heat Energy VOCABULARY Fahrenheit Thermodynamic Fundamental Conversion Absolute Expansion Contraction Particles Thermometer Electromagnetic waves. Thermochemistry. Energy absorbed or released as heat in a chemical or physical change is measured in a . calorimeter. .. In some calorimeters, known quantities of reactants are submersed in water and combusted. The energy given off is noted by the temperature change in water.. Presented by: N.S Thomas. Department of Mechanical and Mechatronic Engineering, University of Stellenbosch. Private Bag XI, MATIELAND . 7602. , South Africa. Tel: 083 484 2893. Email: 15818705@sun.ac.za. Energy. The capacity of vigorous activity. The ability to act. The capacity of a body or a system to do work. (and heat). . . Mechanical Energy. Kinetic + Potential. E = U+K. . h. Chemical Energy:. Fins and Extended Surfaces. 1. Chapter 3c : One-dimensional, Steady state conduction (with thermal energy generation) (Section 3.5 – Textbook). 2. 3.1 Implications of energy generation. Involve a local source of thermal energy due to conversion from another form of energy in a conducting medium.. Energy . Energy . exists. in many forms.. Energy . can. be moved from one object to another.. Energy . can. be changed from one form to another.. Energy . cannot. be created or destroyed.. What is Always Present . How does heat energy get from the Sun to the Earth?. There are no particles between the Sun and the Earth so it CANNOT travel by conduction or by convection. . ?. RADIATION. How can we relate our new understanding to the greenhouse effect?. Amy Hollander. WAPA Webinar. 4/29/2015. Community-Scale Consumption and Savings Potential. Homes and commercial buildings consume . 41% . of . U.S. energy . The average residential home spends $2,000 annually on energy costs, 10 to 20% of which is wasted from air leakage and outdated heating, ventilating, and air-conditioning (HVAC). Things you should know so far…. Energy transfer – endothermic vs. exothermic. Energy diagrams . Internal energy (including work). Heat equation. Calorimetry. and conservation of energy. Molar enthalpy. Heat. Heat. is energy that flows from a higher-temperature object to a lower-temperature object because of the difference in temperatures.. SI Unit of Heat:. joule (J).. SI unit for heat is the joule, J. HEAT ENERGY TRANSFER AND AIR TEMPERATURE As we have seen, Earth’s Weather and Climate are the results of the intricate interrelationships between the Earth and the Sun, and between the components of our Atmosphere and June 6, 2017. NOAA Satellite and Information Service | National Centers for Environmental Information. Tim Boyer. Climate . change definition. Climate change refers to a statistically significant variation in either the mean state of the climate or in its variability, persisting for an extended period (typically decades or longer). Climate change may be due to . Flows from higher-temperature object to lower-temperature object. System. (T. 1. ). Surroundings. (T. 2. ). Heat. If T. 1. > T. 2. q . system. = -. exothermic. System. (T. 1. ). Surroundings. (T. Qnet. = (. Downwelling. Shortwave + Upwelling Shortwave (albedo)) + (. Downwelling. . Longwave – Upwelling Longwave). Substituting the GEOS-5 expressions for each of these fields gives:. Sfc. . Clausius. – . Clapeyron. equation, Temperature dependence of entropy, Statistical interpretation of entropy, Consequences of third law, Nernst heat theorem, Equilibrium constant, Van-Hoff equation, Concept of fugacity, activity and mole fraction.