Predict whether a reaction or process will be spontaneous by using the sign of ΔGӨ The entropy and enthalpy both affect whether a reaction is spontaneous. The balance between these factors is found using Gibbs free energy, symbol G. This indicates whether a reaction...
State and explain the factors that increase the entropy in a system Entropy (symbol is S) is a measure of the randomness or disorder in a system. This tends to increase over time in a closed system. Gases mixing together increase the entropy. The disorder of a system...
Born-Haber Cycles Define and apply the terms lattice enthalpy and electron affinity Lattice Enthalpy – The energy required to completely separate one mole of a solid ionic compound into its gaseous ions. Electron Affinity – The energy change that occurs when mole of...
Define and apply the terms standard state, standard enthalpy change of formation, and standard enthalpy change of combustion Standard State The state that the substance is in at 298K [25°C] and 1atm [1.01 x 102kPa]. For elements, this is solid, liquid or gas. For...