A building owner is considering replacing single-glazed windows with double-glazed windows to save energy. He would like also to eliminate condensation moisture problem during wintry weather. Moist air at standard conditions in the indoor building space reaches a dry-bulb temperature of 72°F with a relative humidity of 50%. Will the double-glazed windows present condensation under these indoor space conditions if the interior surface temperature of the glass drops to 50°F? Provide your answer based on an analysis of the Psychrometric conditions change (describe the process in a Psychrometric chart to explain your answer).



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