An initially empty cylinder is filled with air from 20°C, 100 kPa until it is full. Assuming no heat transfer is the final temperature larger, equal to or smaller than 20°C? Does the final T depend on the size of the cylinder?
This is a transient problem with no heat transfer and no work. The balance equations for the tank as C.V. become
Continuity Eq.: m2 – 0 = mi
