Enthalpy of hydration, Enthalpy of solution and Entropy

Enthalpy of solution is always exothermic

• true

• false

The ionic compound is soluble when the enthalpy of solution is negative or slightly small positive

• true

• false

Enthalpy change of hydration is always endothermic because it involves breaking the ionic bonds in ionic solids

• true

• false

Which relationship is correct?

• enthalpy of hydration = lattice energy+ enthalpy of solution

• enthalpy of solution = lattice energy+ enthalpy of hydration

• lattice energy = enthalpy of hydration + enthalpy of solution

What is entropy?

• measure of energy of particles

• measure of randomness of particles

• measure of bond formation energies

which one will have a higher entropy?

• steam

• water

• ice

which formula is correct for entropy of system?

• entropy of products + entropy of reactants

• entropy of products - entropy of reactants

• entropy of reactants - entropy of products

How well the lesson went today? Please remember that you need to go through my previous lesson on this. Otherwise, you may find it too fast. It is a review. (A-Very excellent to E-Terrible to the core)

• A

• B

• C

• D

• E