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Gas Laws Quiz #1

8 Questions  I  By Robert Stine
Physics Quizzes & Trivia
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. 4

Express the answer as 2. 4 atm

Note 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. I
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Question Excerpt

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1.  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?
2.  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?
3.  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?
4.  A gas has a starting pressure of 780mm-Hg and 70 degrees Celsius, with an unknown starting volume. The gas is able to expand and it’s final volume was 100 ml, the final pressure was 750mm-Hg and the final temp was 50 degrees Celsius. What was the initial volume in mL?
5.  If a gas is cooled from 290 to 250 degrees kelvin and the volume is kept at a constant volume of 780ml.What was the initial pressure in mm-Hg if the final pressure is 810 mm-hg?
6.  A 3.5 L sample of an unknown gas is at a pressure of 900kPa. If the pressure increases to 1013 kPa at a constant temperature of 150 degrees kelvin, What will the new volume be?
7.  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?
8.  . A gas occupies 15 L at a pressure of 5 atm. What is the volume when the pressure is increased to 10 atm but the temperature remains at 273 degrees kelvin?
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