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Gas Laws Quiz #1

8 Questions  I  By Robert Stine
Gas Laws Quiz #1
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.  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?
2.  What is the temperature in Kelvin when a gas that occupies 1L at 15 degrees Celsius is compressed to .5L?
3.  A gas occupies 15 L at a pressure of 80 mm-Hg. What is the volume when the pressure is increased to 525 mm-Hg?
4.  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
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.  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?
7.  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?
8.  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?
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