How Does Temperature Affect Dew Point and Saturated Vapor Pressure?

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This means that the air is now closer to saturation and the relative humidity has increased.In summary, the saturated vapour pressure and dew point will decrease from 8*C to 7*C when the temperature falls from 15*C to 10*C in an enclosed area. This is due to the inverse relationship between temperature and saturated vapour pressure, and the increase in relative humidity.
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Fluid Substances: Hygrometry question PLEASE HELP!

Homework Statement



Air temperature and dew point of an enclosed area are 15*C and 8*C respectively. If the temperature falls to 10*C, what will be the change in saturated vapour pressure and the dew point?

[Saturated vapour pressure at 7*C = 7.5 x 10^-3 mHg
at 8*C = 8.1 x 10^-3 mHg]

Homework Equations



Relative Humidity, R = (f/F) x 100%
where f = vapour pressure
F = saturated vapour pressure

The Attempt at a Solution

 
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The change in saturated vapour pressure will be a decrease from 8.1 x 10^-3 mHg at 8*C to 7.5 x 10^-3 mHg at 7*C. This is because the saturated vapour pressure decreases as temperature decreases (inversely proportional).The dew point will also decrease from 8*C to 7*C as the temperature has decreased to 10*C.
 

1. What is hygrometry?

Hygrometry is the scientific study of humidity, or the amount of water vapor present in the air.

2. How is hygrometry measured?

Hygrometry is typically measured using a device called a hygrometer, which can measure relative humidity, absolute humidity, and other related parameters.

3. Why is hygrometry important?

Hygrometry is important in many fields, including meteorology, agriculture, and industrial processes. It helps us understand and predict weather patterns, monitor and maintain optimal conditions for plant growth, and control moisture levels in various materials.

4. What are some common applications of hygrometry?

Some common applications of hygrometry include weather forecasting, indoor air quality monitoring, and moisture control in food production and storage.

5. How does hygrometry relate to other fluid substances?

Hygrometry is closely related to other fluid substances, such as air and water, as it involves the measurement and control of humidity, which is a key factor in the behavior and properties of these substances.

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