Ch.10 - Gases: Their Properties & Behavior
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- The recommended pressure for inflation of an automobile tire is 35 psi. What is the pressure in units of mm Hg? 11 atm = 14.7 psi; 1 atm = 760 mm Hg2 (LO 10.1) (a) 3.9 * 105 mm Hg (b) 0.68 mm Hg (c) 3.2 * 102 mm Hg (d) 1.8 * 103 mm Hg
Problem 1
- What is the pressure of the gas inside the bulb (atm) if the outside pressure is 0.92 atm? (a) 1.1 atm (b) 2.6 atm (c) 0.22 atm (d) 0.70 atm
Problem 2
- Assume that you have a gas cylinder with a movable piston filled with oxygen. The initial conditions are T = 250 K, n = 0.140 mol O2, and P = 1.00 atm. If the initial volume is 1.0 L, what is the volume when the temperature is increased to 400 K and the pressure is decreased to 0.75 atm? (LO 10.3) (a) 2.1 L (b) 1.2 L (c) 0.83 L (d) 1.6 L
Problem 3
- Many laboratory gases are sold in steel cylinders with a volume of 43.8 L. What is the mass in grams of argon inside a cylinder whose pressure is 17,180 kPa at 20 °C? (LO 10.4) (a) 1.83 * 107 g (b) 1.81 * 105 g (c) 1.23 * 104 g (d) 122 g
Problem 4
- Propane gas 1C3H82 is often used as fuel in rural areas. How many liters of CO2 are formed at STP by the complete combustion of the propane in a container with a volume of 15.0 L and a pressure of 4.50 atm at 25.0 °C? The equation for the combustion of propane is: C3H81g2 + 5 O21g2¡3 CO21g2 + 4 H2O1l2 (LO 10.4, 10.5) (a) 61.8 L (b) 186 L (c) 20.6 L (d) 2.21 * 103 L
Problem 5