16) If the pressure of a gas sample is quadrupled and the absolute temperature is doubled, by what factor does the volume of the sample change? 17) The temperature of an ideal gas in a 5.00 L container originally at 1 atm pressure and 25°C is lowered to 220 K. Calculate the new pressure of the gas. 18) At what temperature will a fixed mass of gas with a volume of 125 L at 15°C and 750 mmHg occupy a volume of 101 L at a pressure of 645 mm Hg. 19) Calculate the volume occupied by 35.2 g of methane gas (CH) at 25°C and 1.0 atm. R=0.0821 L atm/K mol.