Question
Two closed bulbs of equal volume (V) containing an ideal gas initially at pressure pi and temperature T1 are connected through a narrow tube of negligible volume as shown in the figure below. The temperature of one of the bulbs is then raised to T2. The final pressure pf is:
Solution
B.
Initially,
Number of moles of gases in each container = 
Total number of moles of gases in both containers
= 
After mixing, number of moles in left chamber
= 
Number of moles in right chamber = 
Total number of moles
= 
As the total number of moles remains constant.
Hence,
