CHE-1101 Lecture Notes - Lecture 31: Thermodynamics
Document Summary
Mechanical work a force applied over a distance. Quantify the kinetic energy ek of a moving object. V = the velocity and speed of the object. Energy that is stored or released through the breaking of or making of chemical bonds. (cid:862)there e(cid:454)ists a propert(cid:455) i(cid:374) the u(cid:374)i(cid:448)erse called e(cid:374)erg(cid:455), (cid:449)hich ca(cid:374)(cid:374)ot cha(cid:374)ge (cid:374)o (cid:373)atter (cid:449)hat processes occurs(cid:863) The s(cid:455)ste(cid:373), (co(cid:374)tai(cid:374)s (cid:449)hate(cid:448)er (cid:455)ou"re i(cid:374)terested i(cid:374) for a given situation) Energy can be transferred between the system and surroundings in the form of work or heat. Work involves a force causing mass to move. Heat involves causing the tempeture of an object to increase. E the total energy stored in the system. Delta e = e(final) e(initial) is the change in energy stored in the system due to some process occurring. Delta e = q + w (q is heat absorbed by the system (q>0 endothermic) (w- worked performed on system)
