PPT-Calorimetry

603 Honors 603 Calorimetry honors In this experiment you will determine the quantity of heat involved in two different chemical processes The heat given off or absorbed will be measured using an insulated calorimeter Be sure to record all measurements carefully as you will use the data to calculate the enthalpy change of each process. Measured values show the thermophysical properties of the examined system or sample There are two bas ic types of calorimeters isothermal and adiabatic Constant temperature is sustained in t he isothermal calorimeter t means that the calorimeter is Introduction Differential scanning calorimetry DSC monitors heat effects associated with phase transitions and chemical reactions as a function of temperature In a DSC the difference in heat flow to the sample and a reference at the same temperature Burning of a Match. Zumdahl, Zumdahl, DeCoste, . World of Chemistry. . . 2002, page 293. Energy released to the surrounding as heat. Surroundings. System. (Reactants). D. (PE). Potential energy. (Products). The history of bomb calorimetry reaches back into the late 1800 Fall, 2010 Indirect Calorimetry 1 Indirect Calorimetry Indirect Calorimetry CALORIMETRY The science that quantifies the heat release from metabolism is termed calorimetry . Figure 4.5 CALORIMETRY D Why do some things get hot more quickly than others?. Temperature. Temperature. . – proportional to the average kinetic energy of the molecules. Energy due to motion. (Related to how fast the molecules are moving). Differential Scanning Calorimetry APPLICATION Measurement of Tg of Polypropylene Using the Double-Furnace DSC DSC 8500 The DSC was calibrated for temperature and enthalpic responses using high purity Physics 12 . Objectives. Define . specific heat capacity.. Solve problems involving specific heat capacities.. Explain the difference between solid, liquid, and gaseous phases.. Explain in terms of molecular behavior why temperature does not change during a phase change.. calorimetry Enthalpy changes in reactions Calorimetry and heat measurement Hess’s Law Heats of formation Learning objectives • Describe the standard state for thermodynamic functions &# Heat Capacity. Specific Heat Capacity (c): . the quantity of thermal energy required to raise the temperature of 1 g of a substance by 1°C.. Units are in J/g∙°C. Heat Capacity. Specific . heat capacity values can be looked up in tables. SiD. ?. Adam Para. ALCPG meeting, December 20, 2007. Other Possible Titles. Homogeneous Dual Readout Calorimeter. A List of Miracles and Why You would Like Them to Happen. Prospects for Crystal-based Hadron Calorimetry. Jukka. . Pekola. , . Low. . Temperature. . Laboratory. Aalto . University. , Helsinki, . Finland. Calorimetry for . measuring the photons. Requirements for calorimetry on single microwave quantum level. Photons from relaxation of a superconducting qubit.. Calorimetry Burning of a Match Zumdahl, Zumdahl, DeCoste, World of Chemistry 2002, page 293 Energy released to the surrounding as heat Surroundings System (Reactants) D (PE) Potential energy (Products) FCC week Washington. 23. -27 March . 2015. W. . Riegler. D. . Denisov. , H. . ten. Kate, L. . Lienssen. , F. . Lanni. , M. . Abbrescia. , R. Richter, Y. . Onel. , W. Smith, S. . C. hekanov. Exploration + Higgs as a tool for .