Thermodynamics Flashcards
what is an exergonic reaction?
one which gives out engery
What type of reaction takes in energy?
endergonic reaction
What is a catabolic reaction?
breaking down and releasing energy
What is an anabolic reaaction?
synthesizing and energy consuming
What do you call a molecule which has hydrophilic and hydrophobic properties?
Amphipathic e.g. phospolipid
They form micelles in water
What does the strength of an acid depend on?
how readily it donates a proton
What does an acid turn into when it donates a proton?
conjugate base
For week acids how do you calculate pH?
pH= 1/2pKa- 1/2log c
For strong acids, how do you calculate pH?
pH= -log10[H+]
What is special about a buffer?
pH remains approximately constant when small amounts of acid or base or water are added?
How do you calculate the pH of a buffer?
pH=pKa-log([acid]/[salt])
The pH where the molecule has no net charge is called..?
isoelectric
what is delta H?
change in enthalpy
What is delta S?
change in entropy
What is entropy?
a measure of disorder within a system., As temperature increases, entropy increases.
