21.33 g of an ideal gas in a 2 L container at 300K has a pressure of 2 atm. What is the identity of the gas? Kr Ar Ne He 1 mole of CO2 gas in a container has a pressure of 1 atm. Ar gas is added to the container such that the final pressure is 10 atm. Assume the volume and temperature remain constant. How many moles of Ar gas were added? 10 moles 2 moles None of these are correct 9 moles 1 mole Consider two containers of H2 and CO2 at the indicated temperature, pressure, and volume: H2 CO2 T = 300 K T = 300 K P = 400 atm P = 1 atm V = 1 L V = 1 L Which one of the following statements is true? The CO2 will show more real gas behavior than the H2 The total kinetic energy of the molecules in the containers is the same The average velocity of molecules in CO, container is greater The containers contain the same number of molecules None of the other statement are true