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Condensation occurred at the external glass wall of an air-conditioned lift lobby in a region of same barometric pressure as in part (a). The indoor conditions were 20Cdry-bulb, and 40%RH. The outdoor conditions were 33Cand 85%. Did condensation occur at the outside surface or inside surface of the glass wall? At the time when the condensation occurred, what was the possible maximum

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temperature of the glass wall?