The temperature and the dew point in an open room are 20°C and 10°C. If the room temperature drops to 15°C, what will be the new dew point?

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Solution

$\begin{array}{l} Here, \\ Temperature = 20° C \\ Dew point = 10° C \\ Air becomes saturated at 10° C . But if the room temperature is lowered to 15°C, the dew point will still be at 10°C. \end{array}$

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BOOK ANSWER : 10°C

MY SUGGESTION :

My answer is also same as book because I think that dew point do not depend on environment temperature.

But I want to know that the reason I have mentioned is true or not, if my reason is wrong then why?

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The temperature and the dew point in an open room are 20°C and 10°C. If the room temperature drops to 15°C, what will be the new dew point?

Here,Temperature = 20°CDew point = 10°CAir becomes saturated at 10°C. But if the room temperature is lowered to 15°C, the dew point will still be at 10°C.

$\begin{array}{l} Here, \\ Temperature = 20° C \\ Dew point = 10° C \\ Air becomes saturated at 10° C . But if the room temperature is lowered to 15°C, the dew point will still be at 10°C. \end{array}$