Which of the following is correct option for free expansion of an ideal gas under adiabatic condition

Options

(a) q = 0, ΔT ≠ 0, w = 0
(b) q ≠ 0, ΔT = 0, w = 0
(c) q = 0, ΔT = 0, w = 0
(d) q = 0, ΔT < 0 , w ≠ 0

Correct Answer:

q = 0, ΔT = 0, w = 0

Explanation:

For free expansion of an ideal gas under adiabatic condition, q = 0, ΔT = 0, w = 0.