CHY 102 Study Guide - Final Guide: Endothermic Process, Chemical Equation, Exothermic Process

Which of the following statements best describes the first law of thermodynamics? Select all that apply. Delta E = E_ final - E_ initial the total energy of the universe is decreasing. the energy gained or lost by a system must equal the energy lost or gained by the surroundings. Delta E = q + w Heat released by the system is absorbed by the surroundings. Energy can be neither created nor destroyed, but it can change from one form to another. the sum of all of the kinetic and potential energies of all of the components of a system is Constant. the work done by a system equals the work done on the surroundings. Delta E_ = Delta E_sys + Delta E_ = 0

Energy cannot be created nor destroyed, but it can be transferred between a system and its surroundings The change in infernal energy, Delta E, is positive it the system absorbs energy, and is negative it the system releases energy (Figure.1) The total change internal energy is the sum of the heat. q, and work, w: Delta E = q + w. For the purposes of this question, Delta E and Delta U are equal. Classify the following by the sign of Delta E for the system. Drag the appropriate items to their respective bins. If no definitive classification can be made, drag the Item into the enough data.