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A meeting room is kept at a constant dry-bulb temperature of 18°C by an air-conditioner. The room contains 180 kg of dry-air and at the start of a long meeting has a relative humidity of 60%. Over the course of the meeting the relative humidity of the room in- creases to 100% but the dry-bulb temperature does not change. How much water vapour is added to the air during this meeting (in g)? (A) 200 (B) 350 (C) 500 (D) 750 (E) 900

A meeting room is kept at a constant dry-bulb temperature of 18°C by an air-conditioner. The room contains 180 kg of dry-air and at the start of a long meeting has a relative humidity of 60%. Over the course of the meeting the relative humidity of the room in- creases to 100% but the dry-bulb temperature does not change. How much water vapour is added to the air during this meeting (in g)? (A) 200 (B) 350 (C) 500 (D) 750 (E) 900

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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22. A meeting room is kept at a constant dry-bulb temperature of 18°C by an air-conditioner. The room contains 180 kg of dry-air and at the start of a long meeting has a relative humidity of 60%. Over the course of the meeting the relative humidity of the room in- creases to 100% but the dry-bulb temperature does not change. How much water vapour is added to the air during this meeting (in g)? (A) 200 (В) 350 (C) 500 (D) 750 (E) 900
Transcribed Image Text:22. A meeting room is kept at a constant dry-bulb temperature of 18°C by an air-conditioner. The room contains 180 kg of dry-air and at the start of a long meeting has a relative humidity of 60%. Over the course of the meeting the relative humidity of the room in- creases to 100% but the dry-bulb temperature does not change. How much water vapour is added to the air during this meeting (in g)? (A) 200 (В) 350 (C) 500 (D) 750 (E) 900
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