Chemical Thermodynamics

Chemical Thermodynamics

²Thermodynamics

òstudy of energy and its transformations

Ÿheat and energy flow

òHelps determine natural direction of reactions

ŸAllows us to predict if a chemical process will occur under a given set of conditions

²Organized around three fundamental laws of nature

ò1st law of thermodynamics

ò 2nd law of thermodynamics

ò3rd law of thermodynamics

First Law of Thermodynamic

²1st Law:

òEnergy can be neither created nor destroyed

ŸEnergy of the universe is constant

²Important concepts from thermo chemistry

òEnthalpy

òHess’s law

²Purpose of 1st Law

òEnergy bookkeeping

ŸHow much energy?

ŸExothermic or endothermic?

ŸWhat type of energy

Spontaneous vs

 Non spontaneous

²Spontaneous process

òOccurs without outside assistance in 

the form of energy (occurs naturally)

ŸProduct-favored at equilibrium

Ÿ

May be fast or slow

ŸMay be influenced by temperature

²Nonspontaneous process

òDoes not occur without outside 

assistance

Reactant-favored at equilibrium

²All processes which are spontaneous in one 

direction cannot be spontaneous in the reverse 

direction

òSpontaneous processes have a definite 

direction

òSpontaneous processes are irreversible

²

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Chemistry for class 11.....
elements-of-group-13-p-block-elements
states-of-matter-liquids-and-solids
geometric-isomerism-different-geometries
chemical-thermodynamics
introducation-of-carbon-chemistry
electrons-in-atom-and-periodic-table
hybridisation
intermolecular-forces-liquid-and-solids
niels-bohr-atomic-model
iupac-nomenclature-of-organic-compounds
chemical-bonding-molecular-geometry
molecular-orbital-theory
heisenberg-uncertainty-principle
some-basic-concepts-of-chemistry,
equilibrium
environmental-chemistry,
hydrogen
structure-of-atom
classification-of-element

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