advertisement

Name______________________________________________Date_____________________________Per__________ IDEAL GAS LAW Use the Ideal Gas Law equation to solve each problem. The ideal gas law equation is: PV = nRT where: P = pressure V = volume n = # of moles of given gas R = universal gas constant T = temperature Hints: Volume must be in Liters Temperature must be in Kelvin Pressure must be in atm or kPa If mass of the gas is given, convert to moles using molar masses R = 0.0821 atm L / mol K or 8.314 kPa L / mol K Choose the appropriate “R” value based on the units given for pressure 1. It is not safe to put aerosol canisters in a campfire, because the pressure inside the canister gets very high and they can explode. If I have a 1.0 liter canister that holds 2.0 moles of a gas, and the campfire temperature is 1400oC, what is the pressure inside the can? 2. How many moles of gas are in a 30.0 liter scuba canister if the temperature of the canister is 300.0 K and the pressure is 200.0 atmospheres? 3. On a warm day, a 2.20 liter balloon is filled with 0.800 g of helium. The pressure in the balloon is 2.25 atm. What is the temperature on this day? 4. A camping stove uses a tank that holds 3000.0 g of propane gas (C3H8). What volume tank is needed to hold the gas at 25°C and a pressure of 3.0 atm?