Introduction: meaning of specific heat capacity,heat content and types of heat changes in chemical reactions
Answer Text: Introduction:- Most chemical and physical process are accompanied by energy changes which occur in the form of heat measured in joules (J) and kilojoules (KJ).- The heat results from the motion of atoms and molecules.Specific heat capacity- Specific heat capacity of a substance is the number of joules required to raise the temperature of one gram of the substance by one degree Kelvin e.g. – SHC for water is #4.18Jg^-1K^-1 #The heat content(Enthalpy) of a system.- Heat content is denoted by H; while heat change is denoted as ΔH1;- And; ΔH = HProducts -HReactants = H2-H1- Heat changes in chemical reactions can either be exothermic and endothermic.