PPT-Section 7.2—Calorimetry & Heat Capacity

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. 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). Kapitza. conductance in TES devices. Y. Zhao, . Cornell University. , J. . Appel. , . Princeton University. , . J. A. Chervenak. , . NASA GSFC. , R. . Doriese. , . NIST Boulder, . S. Staggs, . Princeton University. www.goldsteineswood.com.au. BRATT PANS. 3 sizes available in GAS and ELECTRIC. g. as models still require 10 Amp plug for electric tilt. d. uplex s/s base for greater heat retention. s/s hygienic and easy to clean. 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 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.. On the front counter there is a perpetually thirsty bird. Do NOT touch him.. Write down all your . observations. of the motion. Do not try to explain why it’s happening—just look at WHAT is happening. . 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. 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.. Enthalpy . is a state function . (the pathway does not matter) with . the symbol . H. ..  . H . = E . P V. E . is the internal energy of the system, P is the pressure of the system, and V is the volume of the system.. : The Experimental Measurement of Heat. Outline. Background. Exothermic . vs. Endothermic Reactions. Heat Capacity. Specific Heat. Specific Heat of Selected Substances and Mixtures. Relevance. Background. Calorimetry. 1. Temperature and Energy. 2. We relate energy and temperature by discussing a substance’s heat capacity.. Heat Capacity = heat required to raise temp. of an object by 1. o. C. more heat is required to raise the temp. of a large sample of a substance by 1. Section 4: Thermal Energy Chapter 3: Matter and Energy Learning Objectives Convert between Fahrenheit, Celsius, and Kelvin temperature scales. Relate energy, temperature change, and heat capacity. Thermal Energy 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) Enthalpy . is a state function . (the pathway does not matter) with . the symbol . H. ..  . H . = E + . P V. E . is the internal energy of the system, P is the pressure of the system, and V is the volume of the system..