Visualizing Concepts
The following graph shows two different reaction pathways for the same overall reaction at the same temperature. Is each of the following statements true or false? (a) The rate is faster for the red path than for the blue path, (b) For both paths, the rate of the reverse reaction is slower than the rate of the forward reaction, (c) The energy change AE is the same for both paths. [Section]
General Chemistry I – Week of April 17, 2016 Chapter 10 – Energy Changes in Chemical Reactions System- a part of the universe that is of specific interest Surroundings- rest of the universe outside of the system Thermochemistry- study of heat in chemical reactions Heat- transfer of thermal energy o Either absorbed or released o SI unit is a Joule, J o Calories are often used – amount of heat required to raise 1g of water by 1 degree Celsius o 1 cal = 4.184 J exothermic process- occurs when heat is transferred from the system to the surroundings endothermic process – occurs when heat is transferred from the surroundings to the system thermodynamics – study of the interconversion of h
