Two closed vessels of equal volume both with pressure p1 and temperature t1 are connected to each other by tube with negligible volume. If the temperature maintained of both vessels is then changed to t1 and t2 respectively what is the pressure in the vessels?

1 answer

Pressure in vessel 1 is p1 since the temperature hasn't changed.
Pressure in vessel 2 is
p2 = p1 x (t2/t1)