A 30-liter cylinder is evacuated and filled with 5.00 kg of a gas containing 10.0 mole% N2O and the balance N2. The gas temperature is 24°C. Use the compressibility chart to solve the following problems.

(a) What is the gauge pressure (atm) of the cylinder gas after the tank is filled?

(b) A fire breaks out in the plant where the cylinder is kept, and the cylinder valve ruptures when the gas gauge pressure reaches 273 atm. What was the gas temperature (°C) at the moment before the rupture occurred?