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Chemistry Gas Laws

Q. A cylinder with a movable piston contains 2.00 g of helium, He, at room temperature. More helium was added to the cylinder and the volume was adjusted so that the gas pressure remained the same. How many grams of helium were added to the cylinder if the volume was changed from 2.00 L to 4.50 L? (The temperature was held constant.) Express your answer numerically in grams.

Solved • Apr 13, 2020

Chemistry Gas Laws

Q. A certain amount of chlorine gas was placed inside a cylinder with a movable piston at one end. The initial volume was 3.00 L and the initial pressure of chlorine was 1.35 atm. The piston was pushed down to change the volume to 1.00 L. Calculate the final pressure of the gas if the temperature and number of moles of chlorine remain constant. (Figure 1)

Solved • Apr 13, 2020

Chemistry Gas Laws

Q. 1.) You hold a sealed, fully-rigid, non-insulated jar, containing only inert helium gas over a flame for 50 seconds. a. Which gas law variables are affected? b. Will the effected variables be directly proportional or indirectly proportional?

Solved • Apr 17, 2020

Chemistry Gas Laws

Q. 3.) A permanently sealed, nitrogen-filled balloon is subjected to conditions that cause it to contract. a. What are the presumed constants for this process? b. What changes are necessary in the variables for the balloon to contract. Assume that only one variable is changed at a time.

Solved • Apr 17, 2020

Chemistry Gas Laws

Q. An ideal gas is contained in a cylinder with a volume of 5.0 x 102 mL at a temperature of 30oC and a pressure of 760 mmHg. The gas is then compressed to a volume of 25 mL and temperature is raised to 820oC. What is the new pressure of the gas?

Solved • Apr 15, 2020

Chemistry Gas Laws

Q. Use the References to access important values if needed for this question. A sample of helium gas at a pressure of 899 mm Hg and a temperature of 36 °C, occupies a volume of 14.7 liters. If the gas is cooled at constant pressure to a temperature of 12 °C, the volume of the gas sample will be L.

Solved • Apr 13, 2020

Chemistry Gas Laws

Q. A sample of oxygen gas at a pressure of 1.09 atm and a temperature of 26.0 °C, occupies a volume of 19.5 liters. If the gas is allowed to expand at constant temperature to a volume of 26.6 liters, the pressure of the gas sample will be atm.

Solved • Apr 13, 2020