Gas Laws Quiz #1

8 Questions  I  By Robert Stine on November 9, 2009
Quiz on gas laws # 1 includes questions on Boyle's Law. Charles' Law, Lussac's Law, and the Combined Gas Law. Identify the law you need to solve the problem and solve the problem. Use classroom rules for rounding and include units in your answer. Example: If 6 liters of a gas at 2.0 atm is compress the gas to have a new volume of 5 liters, what is the new pressure? This is a Boyle's Law Problem so P1V1 = P2V2(2.0)(6) = (P2)(5)P2 = 2.4Express the answer as 2.4 atmNote rounding is important numbers greater than 1 are rounded to the tenths place (1 = 1.0, 5.85 = 5.9 etc...) and numbers less than 1 are rounded to one place after the first non zero (0.000567 = 0.00057, 02875 = 0.29)Units are expressed after the number as above. Include a space in between the number and the unit. 2.4 atm not 2.4atm.You can miss 1 question and earn the Certificate of Achievement.

  

Question Excerpt

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1.  What will the pressure be in atm when a gas at 7 atm is heated from 15 to 30 degrees Celsius, if the volume stays at a constant 5L?
2.  A gas is cooled from 350 to 300  degrees kelvin, with a constant volume of 5L. What would the final pressure of the gas be in mm-Hg if the initial pressure measures at 850 mm-hg?
3.  A gas has a pressure of 630 mm-Hg at 296 degrees kelvin. At standard pressure what is the temperature of this gas in K?
4.  The temperature of a 10 L sample of gas is at 500 degrees kelvin and lowers to 300 degrees kelvin, What will the volume of the gas be if the pressure remains at a constant of 150 kPa?
5.  A gaseous sample of carbon dioxide occupies a volume of 3.27 L at a temperature of 20 degrees Celsius. If the pressure remains constant, what is the temperature in Kelvin if the volume lowers to 3L?
6.  A sample gas occupies 0.5 liters at 30 degrees Celsius and 2000 mm - Hg. What is the temperature in Kelvin at which the gas will occupy 1 liter at 2280 mm-Hg
7.  400L of gas is stored at 100 degrees Celsius at a pressure of 709kPa. The gas is moved to a tank that is 20 degrees Celsius cooler and the pressure of the tank is 3000kPa. What is the volume of the gas in L?
8.  A gas in a balloon that has a volume of  5 L is at a pressure of 0.7atm. The gas is able to expand at a constant temp of 10 degrees Celsius until the pressure is at 0.5atm. What is the final volume of the box?
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