The correct option for free expansion of an ideal gas under adiabatic condition is:

(1) q = 0, $\Delta$T = 0 and w = 0

(2) q = 0, $\Delta$T < 0 and w > 0

(3) q < 0, $\Delta$T = 0 and w = 0

(4) q > 0, $\Delta$T > 0 and w > 0

(1) q = 0, $\Delta$T = 0 and w = 0

(2) q = 0, $\Delta$T < 0 and w > 0

(3) q < 0, $\Delta$T = 0 and w = 0

(4) q > 0, $\Delta$T > 0 and w > 0