A flask of volume 5.00 L is evacuated and 43.78 g of solid dinitrogen tetroxide, N2O4, is introduced at ?196°C. The sample is then warmed to 25°C, during which time the N2O4 vaporizes and some of it dissociates to form brown NO2 gas. The pressure slowly increases until it stabilizes at 2.96 atm. (a) Write a balanced equation for the reaction. (b) If the gas in the flask at 25°C were all N2O4, what would the pressure be? (c) If all the gas in the flask converted into NO2, wha