PSS 18.1 Ideal Gases Learning Goal: To practice Problem-Solving Strategy 18.1 Id
ID: 1374243 • Letter: P
Question
PSS 18.1 Ideal Gases
Learning Goal:
To practice Problem-Solving Strategy 18.1 Ideal Gases.
Lethal concentrations of gases are often expressed in terms of volume fraction, that is, the fraction of available space occupied by the hazardous gas. A hazardous-materials worker wants to calculate the volume fraction of chlorine gas in a storage room after all of the contents of a 0.600-L cylinder of chlorine gas at 143atm is accidentally released in the room. The environment in the storage room is kept at a constant pressure of 1.00atm and a constant temperature of 20.0?C. The room's dimensions are 4.50m7.00m2.50m. What is the volume fraction of chlorine gas present in the storage room?
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Part A
Which of the following statements about what happens to the chlorine gas when it leaves the cylinder is true?
(1) The pressure of chlorine decreases. (2) The pressure of chlorine increases. (3) The pressure of chlorine stays the same.Explanation / Answer
(A) Ans 1 : Pressure of chlorine decreases..
As the volume of room is greater than volume of cylinder , hence the pressure will decreases when chlorine leaves the cylinder.
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