How `DeltaG` is related to `DeltaH and DeltaS`? What is the meaning of `DeltaG = 0`?

Give the relation between DeltaU and DeltaH .

Write the relation between Delta H and Delta U .

For an isolated system DeltaU=0 What is DeltaS ?

How Delta H, Delta S and Delta G changes during adsorption ?

Predict the feasibility of a reaction when i) both DeltaH and DeltaS increase ii) both DeltaH and DeltaS decrease iii) DeltaH decreases but DeltaS increases