What variables for chlorine gas are you given and what variables must you find i

Question

What variables for chlorine gas are you given and what variables must you find in this problem? Drag the appropriate variables to their respective bins. Which of the following statements about what happens to the chlorine gas when it leaves the cylinder is true? The pressure of chlorine decreases. The pressure of chlorine increases. The pressure of chlorine stays the same. 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 0.900-L cylinder of chlorine gas at 121 atm is accidentally released in the room. The environment in the storage room is kept at a constant pressure of 1.00 atm and a constant temperature of 20.0 degree C. The room's dimensions are 5.00m times 8.00m times 3.00m. What is the volume fraction of chlorine gas present in the storage room? What is the volume fraction of chlorine in the storage room? Express the volume fraction numerically. EVALUATE your answer When you found the volume fraction of chlorine gas present in the storage room, you had to calculate how the volume of chlorine gas changed as a result of a decrease in pressure. By what factor did the volume of chlorine gas increase when the gas was released from its container? Express the ratio of final to initial volumes of chlorine numerically. V_2/V_1 =

Explanation / Answer

(D)

let,volume of gas when the pressure is decreased to 1 atm = V2

from the gas equation,

P1*V1 = P2*V2

121*0.900 = 1*V2

V2 = 108.9 L

factor of volume change = V2 / V1 = 108.9 / 0.900

factor = 121

answer

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