BIOL 1202 Chapter : Chapter 5 Notes
Document Summary
4 the main types of reactions; solutions and molarity. Thermodynamics: thermo = heat (energy) dynamics = movement, motion. System: the portion of the universe that we are considering open system: energy & matter can transfer closed system: energy transfers only isolated system: no transfers. Isothermal: a system that is kept at a constant temperature by adding or subtracting heat from the surroundings. Heat capacity: the amount of heat energy required to raise the temperature of a certain amount of material by 1 c (or 1k). Calorie: the amount of heat required to raise the temperature of 1g of water by 1 c. 5 thermo, p. 3 specific heat of water = 1 cal/g c. The specific heat of iron is 0. 45 j/ c g. q = heat energy = (specific heat)(mass)( t) Heat energy = (0. 45 j/ c g)(7. 0 g)(125-25 c) = + 315 j. Energy: the capacity to do work or transfer heat .
