3. Modified McQuarrie 16-10: 1.2 L of N₂(g) at 2.1 bar and 2.0 L of Ar(g) at 3.4 bar are mixed in a 4.0 L flask to form an ideal-gas mixture. a) What is the final P of the mixture if the initial and final temperature of the gases are the same? b) What is the final P if the initial temperatures of the N₂(g) and Ar(g) are 304 K and 402 K,respectively, and the final temperature of the mixture is 377 K? (Assume ideal-gas behavior.)