Question

a vessel of capacity 600 cubic cm contains hydrogen gas at a pressure of 304 cm Hg. what will be the pressure of hydrogen gas when the vessel is connected to another vessel of 300 cubic cm capacity

Answer 1

V initial = 600 cubic cm
Pressure initial = 304 cm Hg.
V total = 600+300=900 cubic cm

Now,
=> P initial × V initial = P final × V final

=> P final =P initial × V initial / V final

=> P final =600×304/900

=> P final =202.67 cm Hg