Which outcome occurs when a closed air conditioning system undergoes rapid depressurization?

💡 Explanation

Rapid depressurization leads to a sudden drop in temperature. This causes rapid phase transition of moisture in the air via adiabatic expansion; therefore visible water droplets (fog) form, rather than other effects like solidification, because air's water vapor capacity decreases.

• Which risk increases when mismatched impedance causes standing waves in a high-power RF transmission line?
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• Which material alteration enables transistor switching via band gaps?