Specific arrangements of particle (atoms, ions, and molecules)
increase in entropy
From highly ordered to More disordered
Rudolf Clausius
He discover that the heat will never travel from colder body to hotter body
Law of increased entropy
Also known as 2nd law of thermodynamics
All spontaneous processes lead to an increase of entropy in the universe.
The entropy in an isolated system will never decrease over time.
Entropy
Measure of the unavailable energy closed thermodynamics system that is also usually considered to be a measure of system's disorder
2nd law of thermodynamics states that an isolated system's entropy will never decrease overtime
Spontaniety
A property of a process to occur without an external input of energy
Two types of Process
Spontaneous Process
Non-Spontaneous Process
Spontaneous Process
a process where it proceeds without external input
Types of Spontaneous process
Melting
Sublimation
Evaporation
dissolution
Non-spontaneous Process
This process requires energy/external output to proceed
Ludwig Boltzmann (1850)
He derived the mathematical relationship between entropy and the number of microstates in a system
Max Planck
he writes the boltzmann equation
Gibb's Free Energy
Measure of the available energy in a system to do work
Gibb's Available Energy
The other term for Gibb's Free Energy
irreversible reactions
One way type of reaction
Reversible Reactions
A two way type of reaction
Not all reversible reactions are considered to be in a state of equilibrium.
When no further change is happening in a reaction, the reaction is in equilibrium.
Le Chatelier's Principle
this principle states that If there is a change in the system, equilibrium will respond to attain a new equilibrium that offsets the effects of such changes.
in Le Chatelier's Principle solid and liquid doesn't affect the equilibrium
Arrhenius Theory
this theory describes acid as compound that release hydrogen ions when dissolve to water. this theory also describe bases as hydroxide ions when dissolve in water
Bronsted-Lowry Theory
this theory states that acids are proton donor while bases are proton acceptor
Water is also known as Amphiprotic species
Amphiprotic
Can be both acid or bases
water can autoionization / self-ionization
Buffers
This is the pH regulators that keep the pH within a narrow range
in Le Chatelier's Principle if the temperature goes up the shift is to the left
in Le Chatelier's Principle if the temperature goes down the shift is to the right
in Le Chatelier's Principle if the product increase the reactant will decrease therefore it is left shift
in Le Chatelier's Principle if the reactant increase the product will decrease therefore it is right shift
buffer components that can act as “shock absorbers” thus, a drastic change in pH levels is negated.
Redox Reaction
Reduction-oxidation reaction
reduction
gain of electron
oxidation
loss of electron
oxidizing agent
the species doing the oxidation or causing electron loss
reducing agent
The species doing reducing or causing electron gain