The heat flow under ________ conditions is a direct measurement of `Delta H`

Under which of the following conditions is the relation Delta H = Delta U + p Delta V valid for a closed system ?

Under which of the following conditions is the relation, Delta H = Delta E + P Delta V valid for a system :-

Under the following conditions, in which direction will, the reaction shift to attain its equilibrium? under which condition, Q=K ?

Under what conditions is the heat of reaction equal to enthalpy change?