CHE 131 Lecture Notes - Lecture 18: Law And Justice, Boiling Point, Calorimetry

• School: Stony Brook University
• Department: Chemistry
• Course: CHE 131
• Professor: Benjamin Hsaio, Jiangyong Jia, Roy Lacey

Document Summary

Che 131 lecture 18: calorimetry; measuring the energy associated with a chemical or physical change. State functions: the internal energy e is a state function. The specific heat for a substance has the same value regardless of the size of the sample. The symbol for specific heat is c. The units for specific heat are j/ mol * k. A calorimeter is a device used to measure the heat or thermal energy associated with a chemical of physical process. Heat produced by process = heat gained by calorimeter. Q is the total amount of thermal energy absorbed or released by a chemical system in joules. M is the mass of the substance in grams. C is specific heat capacity of the substance in j/ (g x . T is the temperature change experienced by the substance as it warms or cools in . Heats in turns to kinetic energy when . Heat in turns to phase change t is 0.