vessel (the volume is 50.0 L) hold 2.00 moles of chlorine gas at a temperature
of 25°C. Another 20.0 L of chlorine gas at STP are added into the fixed vessel.
After fully mixing, temperature of the vessel is 14°C.
i. What is
the initial pressure in the vessel? atm
ii. What is
the new pressure in the vessel? atm