Why `Delta H` is more significant than `Delta U` ?

Significance Of Delta

In which of the following reactions, Delta H is greater than Delta U ?

Delta U=0 for

If Delta H is the change in enthalpy and Delta U the change in internal energy accompanying a gaseous reaction (A) Delta H is always greater than Delta U (B) Delta H < Delta U only if the number of moles of the products is greater than the number of the reactants (C) Delta H is always less than Delta U (D) Delta H < Delta U only if the number of moles of the products is less than the number of the reactants

What is significance of T DeltaS in DeltaG = DeltaH - T DeltaS ?

For process 1, Delta U is positive, for process 2, Delta U is zero and for process 2, Delta U is negative. Find the parameters indicating x and y axes.

Which of the following reactions is Delta H less than Delta E ?