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Tuesday, 1 March 2016

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
 chemical thermodynamic,scceducation,ssc,scc,sharma sir,
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Chemical Thermodynamics



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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