A mixture of CS2 (g) and excess O2 (g) is contained in a 10.0 L reaction vessel at 100 degrees C. The total pressure of the mixture is 3.00 atm. A spark causes the CS2 to ignite and it burns completely according to the following balanced equation:
CS2 (g) + 3 O2 (g) => CO2 (g) + 2 SO2 (g)
The vessel and contents are returned to 100 degrees C, and the mixture of product gases (CO2, SO2 and unreacted O2) has a total pressure of 2.40 atm. Determine the partial pressure of each of these gases in the final product mixture