Arigid tank initially contains 5 kg nitrogen (n2) at 500 kpa and 327 degree c (state 1). the n2 is gradually cooled to 27 degree c (state 2) due to the heat loss from n_2 to ambient air at 20 degree c, which is considered as boundary temperature of heat transfer.

(a). determine the pressure of n2 at state 2.
(b). calculate the change in the total entropy of n2 during this cooling process.
(c). find the heat loss from tank to ambient air during this process.
(d). determine the entropy generation during this process.
(e) is this process reversible, irreversible or impossible?