maintain room at partial pressure of water of 12 torr. the room is 20 degrees celcuis and relitive humidity is reading 52%
1. what is the partial pressur of water in the air in the room?
2. Equibrium vapor pressure of water at 20 degrees celcius is 17.5 tor is there adequate humidity in the room?
where do I even begin
To answer these questions, you'll need to understand the concept of relative humidity and how it relates to partial pressure of water in the air.
1. To find the partial pressure of water in the air in the room, you need to consider the relative humidity and the equilibrium vapor pressure of water at the given temperature.
The relative humidity is a percentage that indicates how much water vapor is present in the air compared to the maximum amount of water vapor the air can hold at that temperature. In this case, the relative humidity is given as 52%.
The equilibrium vapor pressure of water at 20 degrees Celsius is given as 17.5 torr.
To find the partial pressure of water in the air, you can use the formula:
Partial pressure of water = Relative humidity * Equilibrium vapor pressure of water
Substituting the values:
Partial pressure of water = 0.52 * 17.5 torr
Partial pressure of water = 9.1 torr (approximately)
2. To determine if there is adequate humidity in the room, you need to compare the partial pressure of water in the air (calculated in question 1) to the desired partial pressure of water, which is given as 12 torr.
If the partial pressure of water in the air is equal to or greater than 12 torr, then there is adequate humidity in the room. Otherwise, the room lacks sufficient humidity.
So in this case, the partial pressure of water in the air (9.1 torr) is less than the desired partial pressure (12 torr), indicating that the room lacks adequate humidity.
To summarize, begin by calculating the partial pressure of water in the air using the given relative humidity and the equilibrium vapor pressure of water at the given temperature. Then compare the calculated partial pressure to the desired partial pressure to determine if there is adequate humidity in the room.