The Following Set Up Is Arranged in a Laboratory

The following set up is arranged in a laboratory. Assuming the volume of the connecting tubing is negligible and there is no temperature change, determine the final total pressure if all three flasks were allowed to mix.

A) 1.0 bar
B) 1.8 bar
C) 0.69 bar
D) 1.9 bar
E) 5.7 bar