Upgrade to remove ads
Only $35.99/year

EK Chemistry Review

Terms in this set (13)

Boltzman Constant
1.38 x 10^(-23) J*K-1
Internal Energy examples
Collective energy of molecules measured on a microscopic scale. Rotational, Translational,Vibrational, Intermolecular potential, Electronic, Rest Mass
Heat
spontaneous transfer of energy
Conduction
thermal energy via molecular collisions
Convection
thermal energy transfer via fluid (liquid or gas) movements
Radiation
thermal energy transfer via electromagnetic waves
Stefan Boltzman Law and Radiation
most affected by surface area and temperature^4
Enthalpy
Extensive, so when 2 systems combine, enthalpy doubles; state function - depends on the temperature; change in internal energy + constant pressure*change in volume
Enthalpy and internal energy of an ideal gas depends only on
temperature
∆H reaction =
∆H_Products - ∆H_reactants
Entropy
state function; extensive; more disorder- more positive; J/K units;∆S equation cannot be used for irreversible processes because the heat q is different for an irreversible process since its path dependent; same for any process between the same two states
For any reversible reaction within isolated system, entropy change must be
ZERO
Gibbs Free Energy
extensive, state;
Sets found in the same folder