You must have seen that water vapour starts to condense in an air conditioner. Why?

The AC is leaking, call a mechanic.

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The temperature at the AC is lesser than the dew point temperature.

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The temperature at the AC is more than the dew point temperature.

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It is so hot outside, I don't even wanna be reminded of ACs

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Solution

The correct option is B The temperature at the AC is lesser than the dew point temperature.
Yes, one of the jobs of the air conditioner is to lower the humidity! It does this by reducing the temperature of pipes running within it below the dew point, hence you see the AC dripping more on a humid day (If you ask an expert in ACs she would say it is sweating!)

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