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Gas Law Review Name the Law! 1. Pressure and Temperature are directly related with the number of particles and volume held constant. Gay-Lussac’s Law 2. Pressure and Volume are indirectly related with the number of particles and temperature held constant Boyle’s Law 3. Temperature and Volume are directly related with the number of particles and pressure held constant. Charles’ Law Draw and Solve! 4. The volume of the lungs is measured by the volume of air inhaled or exhaled. If the volume of the lungs is 2.400 L during exhalation and the pressure is 101.70 kPa, and the pressure during inhalation is 101.01 kPa, what is the volume of the lungs during inhalation? What law is being addressed in this problem? BOYLE’S! What will happen to the volume of the lungs? Increase! P1V1 P2V2 101.70 kPa 2.400 L 101.01 kPaV2 101.70 kPa 2.400 L V2 101.01 kPa Solve! 5. What volume does 4.24 g of Nitrogen gas occupy at 58.2 degree Celsius and 2,040 kPa? What gas law is this? Ideal Gas Law PV = nRT 58.2 C 273 331.2 K 4.24 g N 2 1 m ol N 2 0.15 m ol N 2 28 g (2,040 kPa)V (0.15 mol)(8.314 J / mol K )(331.2 K ) Draw and Solve! 6. An inflated balloon occupies a volume of 3.20 L at 25.0°C. What volume will the balloon occupy at 50.0°C if the pressure is constant? What law is this? Charles’ Law V1 V2 T1 T2 3.20 L V2 298 K 323 K Draw and Solve! 7. Suppose a used aerosol can contains a gas at 101.3 kPa and 25.0°C. If this can is heated in a fire to 500. 0°C, what will be the pressure of the gas inside the can? What law is this? Gay-Lussac’s Law P1 P2 T1 T2 101.3 kPa P2 298 K 773 K 25.0°C + 273 = 298K 500.0°C + 273 = 773K