Define glass. What is the chief component of glass? Name three types of glass.
2 October 2015 DeltaHof o kJ/mol o Enthalpy DeltaGo o Gibbs free energy o kJ/mol DeltaSo o Entropy o J/mol spontaneous: occurs by itself (no action from the outside system is required) o asking if spontaneous under conditions nonspontaneous - does not occur by itself (action from the system required ) Entropy (S) o a measure of chaos/disorder of a system o S increases when: solid -> liquid solid or liquid -> gas solid or liquid -> solution chemical rea