BI110 Lecture Notes - Lecture 25: Potential Energy, Exergonic Process, Thermodynamics
Document Summary
A and b are reactants; c and d are products, and a, b, c, and d represent the number of moles. The reaction is reversible but the actual direction and rate at any one time depends on the energy and on concentrations of a, b, c and d. Open systems exchange energy and matter with surroundings, and are most important in biology. Can also have closed(only exchanges energy and not matter) and isolated (does not exchange energy or matter) thermodynamic systems. First law of thermodynamics (the law of conservation energy) Energy can be transferred and transformed but not created or destroyed. Total amount of energy in a system and it"s surroundings remains constant. Each time energy is transferred or transformed, some of that energy is lost (becomes unavailable to do work) Only 30% of the energy in gas is converted into mechanical energy. Only about 40% of the energy in glucose is converted to atp.
