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The humidity at dry-bulb temperature of 20oC is 40% and the humidity at dry-bulb temperature of 25oC is 25%, what is the slope of adiabatic cooling line?

The humidity at dry-bulb temperature of 20oC is 40% and the humidity at dry-bulb temperature of 25oC is 25%, what is the slope of adiabatic cooling line? Correct Answer -0.03

Slope of adiabatic cooling line = (0.4 – 0.25)/(20 – 25) = -0.03.

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