A 31.4 L tank contains 3.00 mol of compressed carbon dioxide gas at 23.6°C and 98.7 kPa. If 0.50 mol is used to make a carbonated beverage, what is the new pressure in the tank?

Fill in the blanks for the following statements: the rms speed of the molecules in a sample of h2 gas at 300 k will be times larger than the rms speed of o2 molecules at the same temperature, and the ratio µrms (h2) / µrms (o2) with increasing temperature.