CHEM 1301 Lecture Notes - Lecture 5: Nuclear Reaction, Thermal Energy, Kinetic Energy
2 Apr 2016
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Work is energy transferred when an object moves against an applied force. In physics it is usually deined as w + fd, where an object moves a distance d against an applied force: in chemistry, we oten deal with expanding gases, and can deine work as w = pdeltav, eg. Liting an object: pushing luid out of a tube, stretching a spring. Anyime that we have to exert a force in order to make something move, we are doing work. All other forms of energy are variaion s of these two forms, kineic or potenial energy. Mass, albert einstein and his theory of relaivity provided us with a relaionship between mass and energy. This is the source of energy in nuclear reacions, mass and energy are interconverted. Radiant energy: energy associated with photons of light. Electrical energy: the energy caused by the interacion of two charged objects. Where k = 2. 31 x 10-16 j x pm.
