Student Review acket Answer Key. Convert the following temperatures as indicated. a 0 o C to K 73 K e atm to ka 0.3 ka (s.f. = 00 b -0 o C to K 63 K f 0.878 atm to ka 88.9 ka c 45 o C to K 38 K g 3. atm to ka 30 ka d 500mL to L.5 L h 347 ml to L.347 L Directions: For problems 3, state the gas law needed to solve each problem. Then, apply the law, showing work, to solve the problem. A 50.0 L tire has a pressure of 75.0 ka at 45. o C. What is this volume at ST? Combined Gas Law VT (75.0ka(50.0L(73K 3. 8L T (38.K (0.35ka 3. Calculate the new volume of a 00.0 L balloon when the pressure is suddenly tripled. Boyle s Law V (00.0L( 66. 67L (3 4. The Earth s atmosphere is approximately 78. % N, 0.9% O and.00 % H O. If the air pressure on a given day is.5 atm, calculate the partial pressure of each gas. Dalton s Law of artial ressure = (0.78(.5 atm = 0.976 atm N O = (0.09(.5 atm = 0.6 atm H O = (0.000(.5 atm = 0.05 atm 5. Calculate the pressure of.78 g of in a 5.00 L flask at -0 o C. Ideal Gas Law L ka (0.38mol(8.3 (63K nrt mol K 60. ka V (5.00L 3 60ka age 00
6. Calculate the new pressure on a container when a gas at 3. ka and 0 o C is suddenly heated to 50.0 o C. Gay-Lussac s Law T (33K(3.ka 7. 3ka T 73K 7. A 00.0 L tire has a pressure of.5 atm. What is the pressure if the volume is increased to 37.0 L? Boyle s Law V (.5atm(00.0L. 8atm V (37.0L 8. A weather balloon typically has a volume of 500.0 L. What will the volume be if the temperature drops from 5.0 o C to -40.0 o C? Charles Gas Law VT (500.0L(33K 39L T (98K 9. Calculate the temperature, in o C, of 6.0 g of CO in a.5 L flask at a pressure of.0 atm. Ideal Gas Law V (.0atm(.5L T 67.3K 70ka nr L atm (0.364mole(0.08 mol K 70 K 73 = -03 C 0. A 5.0 ml sample of gas has a pressure of 45.0 ka at 5 o C. What is the new temperature if the pressure is raised to 00.0 ka and the volume decreased to 75.0 ml? age 0 Combined Gas Law VT (00.0ka(75.0mL(88K 384K 380K V (5.0mL(45.0ka
. Calculate the new temperature of a gas when 500 ml at 5 o C is suddenly compressed to 500 ml. Charles Law TV (98K(500mL 00K V (500mL. A flask contains 34.6 ka of CO, 7.6 ka Ar, 8. ka Kr, and some. If the total pressure is 75.0 ka, what is the pressure of? Dalton s Law of artial ressures 75.0ka 34.6ka 7.6ka 8.ka T CO Ar 4.6ka Kr 5 ka in the correct number of sig figs, but remember you want your partial pressuresof each individual gas to add back up to the total pressure of the mixture of gases 3. A sample of gas has a pressure of 0.75 atm at 0 o C. What is the new temperature if the pressure is doubled to.50 atm? Gay-Lussac s Law T (73K(.50atm 546K (0.75atm = 550 K age 0
4. Complete the following table: Increase on this variable leads to.. With this variable held constant This variable increases, decreases, or no change.. Why? ressure Temperature Volume decreases Boyles Law is an inverse increases, the other must decrease. ressure Volume Temperature increases Gay-Lussac s Law is a direct increase. Volume ressure Temperature increase Charles Law is a direct relationship, so if one variable increases, the other must also increase. Temperature ressure Volume increase Charles Law is a direct relationship, so if one variable increases, the other must also increase. Temperature Volume ressure increase Gay-Lussac s Law is a direct increase. Volume Temperature ressure decrease Boyle s Law is an inverse decrease. Moles ressure, Temperature Volume increase If the number of moles is increased, the volume must also increase. (Avogadro s Law Moles Temperature, Volume ressure If the number of moles increase, the pressure must also increase. (Avogadro s Law age 03
5. State at least two differences between ideal and real gases. Real gases have volume and the intermolecular forces tend to reduce the distance between gas particles. Ideal gases assume that gas particles have no volume and intermolecular forces do not exist. 6. Acrostic: Use the following clues and the vocabulary list at the beginning of the unit to fill in the blanks. Then, copy the starred letters over below to form another name for this unit: What Celsius must be converted into V = nrt Not only did he have a model of the atom, he also worked with pressure. This law relates pressure, volume and temperature at the same time. One unit of pressure Another unit of pressure His law relates pressure to temperature at constant volume A measure of how hot or how cold something is. His law relates volume to temperature at constant pressure Number of collisions per unit area The amount of space matter takes up. Kelvin (K Ideal (I Dalton (N Combined (E Atmosphere (T Kilopascal (I Gay-Lussac (C Temperature (T Charles (H ressure (E Volume (O 0.8 L.atm/mol.K or 8.34 L.ka/mol.K R (R His law relates pressure to volume at constant temperature Boyle (Y Answer: Kinetic Theory age 04