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The residence time of water in air is typically around 9 days. This means that, on average, a water molecule will remain in the atmosphere for about 9 days before either being deposited back onto the Earth's surface as precipitation or being absorbed by vegetation.

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Q: What is the residence time of water in air?
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What is the residence time of water in the atmosphere?

The residence time of water in the atmosphere is around 9 days on average. This means that water molecules remain in the atmosphere for about 9 days before returning to Earth as precipitation.


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Residence time of water molecule in the ocean is estimated to be 3000 years. This answer is wrong because this question was asked in exam for the post of junior engineer and the options were- a) 3.5 year b) 3.5 million years c) 35 years d) 35000 years So answer is one from the above..


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What is the formula for calculating residence time?

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What is residence time of gas?

Residence time in the boiler is typically two to five seconds, and the particles must be small enough for complete combustion to have taken place during this time. The ratio of gas occupied to a particular volume is called residence time based on gas.


What is Difference between residence time and space time?

Residence time is the time it takes a particle to complete the cycle. Space time is volume of the reactor over the velocity. If the volume does not change and the velocity remains constant then Residence time = space time, however, if there is a disturbance in the reactor (i.e., change in pressure, temp, ect.), then residence time does not equal to space time.


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Why does the quantity of water decrease in a tumbler when it is exposed to air for a long time?

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What was Aphrodite's residence?

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The average residence time is a measure of the time it takes for the total stock or supply of the material to be cycled through a system. To compute the average residence time (T; assuming constant size of the system and constant rate of transfer), we take the total size of the stock (S) and divide it by the average rate of transfer (F) through the system: T=S/F. Example if a reservoir holds 100 million cubic meters of water, and both the average input from streams entering the reservoir and the average output over the spillway are 1 cubic meter per second, then the average residence time for a cubic meter of water in the reservoir is 100 million seconds, or about 3.2 years.


Which type of pesticide has the longest residence time in the environment?

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