Solid Iodine Has a Vapor Pressure of 1 $\circ$ C How Many Moles of Iodine Will Sublime into a 39

question 139

Multiple Choice

Solid iodine has a vapor pressure of 1.0 mmHg at 39 ^$\circ$ C. How many moles of iodine will sublime into a 500 mL flask at this temperature If the volume of the flask is doubled at constant temperature, what will happen to the equilibrium vapor pressure of I₂
(Assume some solid I₂ is always present in the container.)

• A) 2.1 * 10^-4 mol; vapor pressure increases
• B) 2.0 * 10^-2 mol; vapor pressure increases
• C) 2.6 * 10^-5 mol; no change in vapor pressure
• D) 2.1 * 10^-4 mol; no change in vapor pressure
• E) 2.6 * 10^-5 mol; vapor pressure decreases

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