Thermodynamics Law 2 Flashcards
give an eg of a spontaneous reaction?
hydrogen and oxygen reactive violently to = water
isothermal expansion of a perfect gas into a vacuum has no…
overall change in energy
energy and matter have a tendency to …
disperse
what is the second law of TD?
the entropy of an isolated system tends to increase
define entropy?
measure of how dispersed energy + matter is
when Tf > Ti, the logarithm is positive, meaning that …
change in entropy is greater than 0
entropy changes are higher in materials with …
higher heat capacities
what is the third law of TD?
the absolute entropies of all perfectly crystalline substances is 0 at absolute 0
at absolute 0, all atoms would be …
stationary
what is the standard reaction entropy?
difference in molar entropy between the products and reactants of reaction in standard states
what do carbonic anhydrases do?
catalyse hydration of CO2 in red blood cells
the Gibbs free energy change of any process is…
maximum non-expansion work that can be extracted from that process at constant pressure and pressure
what is delta G = to
Wmax’
if a reaction is EXOTHERMIC and ENTROPICALLY favoured, then it can proceed at all …
temps
