This device simply gives a greater evaporating surface to the water and hence a greater addition to the vapor pressure.
Now he does not know the amount of vapor pressure and has no way of finding it out.
In the present-day incubator of either type we are wholly at the mercy of sudden climatic changes of vapor pressure.
The relative humidity is simply the ratio of the vapor pressure at the dew point to the pressure of saturated vapor (see Fig. 30).
But there is a general tendency for vapor pressure to increase with increase in outside temperature.
Another factor contributing to the ease of handling of 1,2-butylene oxide is its vapor pressure.
Now, the vapor pressure undergoes all manner of changes with the passing of storm centers and the changes of prevailing winds.
|vapor pressure |
In physics and chemistry, the atmospheric pressure that would be exerted by any single component of a gas if that component were the only one present. For example, the vapor pressure of oxygen in the atmosphere of the Earth is the pressure that would exist if everything but oxygen were removed. The total atmospheric pressure is the sum of the vapor pressures of all the materials in the atmosphere.