Chapter 2 Thermochemistry To study chemistry using the theories and methods of thermodynamics 1)heat exchange in chemical reactions (this chapter), 2)directions and extent of reaction processes (see Chapter 4) 2.1 Basic terms in thermodynamics x 2.2 the First law of thermodynamics x 2.3 Heat of a chemical reaction x§2.4 the Hess'slawChapter 2 Thermochemistry §2.1 Basic terms in thermodynamics §2.3 Heat of a chemical reaction To study chemistry using the theories and methods of thermodynamics 1) heat exchange in chemical reactions (this chapter), 2) directions and extent of reaction processes (see Chapter 4) §2.2 the First law of thermodynamics §2.4 the Hess’s law