[Four-digit Integer] A cylinder contains 64 g of an ideal gas (M = 64) at 27°C and 3 atm. In transpo — States of Matter and Gaseous State Chemistry Question

Question

[Four-digit Integer] A cylinder contains 64 g of an ideal gas (M = 64) at 27°C and 3 atm. In transportation, the cylinder fell down and a dent was created, i.e., the effective volume of the cylinder decreases. But the valve attached to the cylinder cannot keep the pressure greater than 3 atm, so 8 g of gas leaked out. The volume of the cylinder before and after the dent was a l and b l, respectively. If the valve were pretty strong, the pressure of gas in the cylinder after dent were cd/7 atm. Temperature remained constant during this process. The value of abcd is