Problem 4. Nine-hundred forty-seven cubic feet of wet air at 70oF and 29.2 in Hg are dehydrated. If 0.94 pounds of water vapor are removed, what was the relative humidity of the wet air? a.) Analyzing the problem, what will be the first thing that you should solve for to get relative humidity? Choices (1) Total pressure of the gas mixture (2) Partial pressure of water (3) Relative humidity (4) Molal humidity (5) Number of moles of the gas mixture b.) What is the partial pressure of water? Express in two decimal points. c.) Where can you get the vapor pressure of water? Choices (1) Get vapor pressure of water at the given temperature using antoine equation. (2) Use relative humidity to solve for the vapor pressure. (3) Assume that partial pressure and vapor pressure is equal. (4) The vapor pressure is assumed to be atmospheric pressure. (5) Insufficient information was given to solve this problem d.) What is the relative humidity of the gas mixture? Express in two decimal points.
Problem 4. Nine-hundred forty-seven cubic feet of wet air at 70oF and 29.2 in Hg are dehydrated. If 0.94 pounds of water vapor are removed, what was the relative humidity of the wet air?
a.) Analyzing the problem, what will be the first thing that you should solve for to get relative humidity?
Choices
(1) Total pressure of the gas mixture
(2) Partial pressure of water
(3) Relative humidity
(4) Molal humidity
(5) Number of moles of the gas mixture
b.) What is the partial pressure of water? Express in two decimal points.
c.) Where can you get the vapor pressure of water?
Choices
(1) Get vapor pressure of water at the given temperature using antoine equation.
(2) Use relative humidity to solve for the vapor pressure.
(3) Assume that partial pressure and vapor pressure is equal.
(4) The vapor pressure is assumed to be atmospheric pressure.
(5) Insufficient information was given to solve this problem
d.) What is the relative humidity of the gas mixture? Express in two decimal points.
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