Identify if solubility increases/decreases/stays the same in the following statements. Each statement refers to the solubility of the solute mentioned.

Increasing the temperature of a solution of a salt that has an enthalpy of solution of 0.0 kJ/mol.

Reducing the partial pressure of nitrogen gas over a solution of nitrogen dissolved in hexane.

Reducing the temperature of a solution of oxygen dissolved in lake water.

Changing the solvent for a solution of CH3OH from pentanol(C5H11OH) to ethanol(C2H5OH)

Increasing the temperature of a solution of KOH dissolved in water. This salt has an exothermic enthalpy of solution.

Increasing the overall pressure on a solution of NaCl dissolved in water.

Raising the partial pressure of CO2 gas on a solution of CO2 dissolved in water.