thermo f2012

These ideas are the fundamentals of thermodynamics

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ated hydrochloric acid •  formaAon of CH4 and O2 molecules from CO2 and H2O at room temperature and 1 atm pressure Most important quanAty •  Thermodynamic quanAty showing spontaneity is the change in Gibb’s free energy, ΔG •  If ΔG is numerically less than zero, process is spontaneous. •  These ideas are the fundamentals of thermodynamics which surpass any one applicaAon of chemistry. What is ΔG and how is it different than K? •  Has energy units •  Represents the maximum amount of (nonexpansion) work that the system could do, a driving force •  Depends on actual concentraAon (work of vinegar to clean metal vs use of concentrated H2SO4) –  Therefore Q must be involved somewhere, too! •  Look at some equaAons: (R = 8.314 J/mol K) ΔG° =  ­RT ln K ΔG = ΔG° + RT ln Q = RT ln (Q/K) ΔG° is the driving force when Q = standard condiAons Standard condiAons •  SoluAons have a concentraAon of 1 M. •  Solids and...
View Full Document

Ask a homework question - tutors are online