Chapter 7
Subject:
Chemistry [1]
Tags:
Chemistry [2]
Physics [3]
thermodynamics [4]
State functions [5]
Thermochemistry [7]
Calorimeter [9]
Heat [10]
Exothermic [11]
Enthalpy [12]
energy [13]
Environment [14]
behavior [15]
Human development [16]
Love [18]
Psychoanalysis [19]
Human behavior [20]
Attachment theory [21]
Evolutionary biology [22]
Personal life [23]
Technology [24]
Chemistry 1210: Introduction to General Chemistry Dr. Gina M. Florio 18 October 2012 Brady, Jespersen, Hyslop Chapter 7 Energy & Chemical Change Thermochemistry: the study of energy flow during a chemical reaction Ch. 7.1 Energy: the ability to do work; often measured as heat Kinetic Energy: the energy of motion; KE = ?mv2 Potential Energy: stored or positional energy; chemical energy (no simple eqn.) Conservation of Energy: 1. Energy cannot be created or destroyed 2. Energy is only converted from one form to another (KE ? PE) 3. Total energy of the universe (or an isolated system) is constant Thermochemistry: Basic Definitions Units of Energy 1 Joule (J) ? the KE possessed by a 2 kg object moving at a velocity of 1 m/s 1 cal = 4.184 J (exactly) 1 kcal = 4.184 kJ