Two identical containers a and b are connected by a small tube with a valve that allows gas flow when the pressure difference across it is greater than 0.6 atm.

Two identical containers A and B are connected by a small tube with a valve that allows gas flow when the pressure difference across it is greater than 0.6 atm. Initially, A contains an ideal gas at pressure 0.5 atm and B a vacuum with the entire system at 27°C. The system is now heated to a temperature of 207°C. What is the final pressure in B ?. (a) 1 atm IISe 2012 (b) 0.7 atm ()0.4 atm (d) 0.1 atm