Welcome to your Ideal Gases and Thermal Expansion(Senior Class Physics Study by Topics) NAME EMAIL PHONE NUMBER 1. One of these is NOT a factor that can affect the rate of evaporation PressureTemperatureAir drynessVolume of liquid2. The atomic mass of carbon dioxide is 44 atomic mass units. What is the atomic mass of oxygen if each molecule contains one atom of carbon and two of oxygen?122210163. A small sample of helium gas occupies 6 mL at a temperature of 250 K. At what temperature does the volume expand to 9 mL?125K2250K375K500K4. Assuming that the temperature remains constant. How can you increase the pressure of a gas? Increase the container volumeAdd more molecules of the gasDecrease the container volumeNone of the above5. You drove continuously from Laguna to Manila, and you observed that the pressure in your tires increased. This is because of the increased temperature outside the tire caused by friction. TrueFalse6. If a block of material has a mass of 8 grams and a volume of 4 cubic centimeters, what is its density? 12 grams-cubic centimeters2 grams per cubic centimeter0.5 cubic centimeters per gram4 grams-cubic centimeters7. In a nitrogen gas has occupied a volume of 500ml at a pressure of 0.971atm. What volume will the gas fill at a pressure of 1.50 atm, assuming the temperature remains constant? 442mL324mL424mL342mL8. The Kelvin temperature scale has the same size degree as the_____ scale and its zero is _____ degrees lower.Fahrenheit ... 273Celsius ... 273Celsius ... 459Fahrenheit ... 4599. A sample of gas occupies 2.5 liters of space. How many moles of gas are there if its pressure is 1.2 atm and temperature is 25C? ___ mol (round to the nearest hundreth).12.020.00.20.1210. In which direction in a fluid at rest is the pressure the greatest at a given depth?UpwardDownwardHorizontalThe pressure is the same in all directions11. Gas pressure is caused by: Gas molecules hitting other gas moleculesGas molecules reacting with other gas moleculesGas molecules hitting the walls of a containerGas molecules heating up12. Organize the following gasses in order of their rates of diffusion, from slowest to fastest oxygen, O_{2} ammonia, NH_{3} hydrogen, H_{2} carbon dioxide, CO_{2} Oxygen, hydrogen, carbon dioxide, ammoniaCarbon dioxide, oxygen, ammonia, hydrogenHydrogen, ammonia, oxygen, carbon dioxideHydrogen, oxygen, ammonia, carbon dioxide13. When a supply of hydrogen gas is held in a 4-liter container at 320 K it exerts a pressure of 800 torrs. The supply is moved to a 2-liter container, and cooled to 160 K. What is the new pressure of the confined gas? 1600 torr200 torr800 torr400 torr14. Neon gas has a volume of 2,000 ml with a pressure of 1.8atm however, the pressure decreased to 1.3 atm, what is now the volume of the neon gas? 2,759mL3,759mL2, 795mL3,795mL15. Two barometers are made with water and oil. The density of oil is 900 kg/m3 and that of water is 1000 kg/m3. If the oil column is 10 m tall, how tall is the water column? 10.0 m11.1 m9.0 m12.0 m16. At what pressure is a 5 liter container containing 20g of oxygen gas at a temperature of 10C? ____ atm (round to the nearest tenth)1.52.93.65.617. A Good example of Charles' law is when a piece of metal expands in the heat. FalseTrue18. Each of these flasks contains the same number of gas molecules. In which would the pressure be lowest? Flask 3Flask 1Flask 4Flask 219. Not all Gas Law problems have Kelvin (K) as the unit of temperature. They can be expressed in Celsius (°C) and Fahrenheit(°F). So, convert 123°C to K. 458K486K369K396K20. A container of nitrogen gas contains 40 g of nitrogen gas at a pressure of 4 atm, and has a temperature of 50C. Given this information, the volume must be _____ liters.6.673.3412.999.4721. A sample of Argon has a volume of 0.43 mL at 299K. At what temperature in degrees Celsius will it have a volume of 1 mL. 422°C695°C428°C694°C22. Which Gas Law is involved when a balloon pops after being sat on? Law of Pressure GradientCharles LawBoyle's LawNone of the Above23. Which of the following doubles with a doubling of the Celsius temperature of an ideal gas?Average kinetic energyAverage speedNone of the aboveAverage momentum24. Avogadro suggested that each liter of gas under identical conditions has the sameMassDensityNumber of moleculesNumber of moles25. Each of these flasks is the same size and at the same temperature. Which one contains the most molecules? Flask 1Flask 2Flask 3Flask 426 out of 25Time is Up!