Atmospheric (1 atm) air with a relative humidity of 40% blows over a smooth, wet flat plate. The plate is 0.6 m long (in the direction of the wind flow) and 3 m wide. The free stream velocity of air is 21 m/s. What is the mass transfer rate (na) of the water from the surface? • You may assume that the air, water, and plate are all at 330 K. • Relative humidity is defined as the density of water in the air-water mixture divided by the density of water at saturation. O A. O g/s snwater 1 g/s O B. 1 g/s s n,water 2 g/s Oc. 2 g/s snwater 3 g/s O D. 3 g/s snwater 4 g/s O E. 4 g/s snater <5 g/s OF. 5 g/s s n,vater 6 g/s OG. 6 g/s s nuater <7 g/s OH. 7 g/s s nater <8 g/s OL 8 g/s snater <9 g/s OJ. 9 g/s snwater < 10 g/s OK. 10 g/s s nyater< 11 g/s OL 11 g/s s nyater < 12 g/s O M. 12 g/s s nater< 13 g/s ON. 13 g/s s nwater 14 g/s 0 o. Pater> 14 g/s
Atmospheric (1 atm) air with a relative humidity of 40% blows over a smooth, wet flat plate. The plate is 0.6 m long (in the direction of the wind flow) and 3 m wide. The free stream velocity of air is 21 m/s. What is the mass transfer rate (na) of the water from the surface? • You may assume that the air, water, and plate are all at 330 K. • Relative humidity is defined as the density of water in the air-water mixture divided by the density of water at saturation. O A. O g/s snwater 1 g/s O B. 1 g/s s n,water 2 g/s Oc. 2 g/s snwater 3 g/s O D. 3 g/s snwater 4 g/s O E. 4 g/s snater <5 g/s OF. 5 g/s s n,vater 6 g/s OG. 6 g/s s nuater <7 g/s OH. 7 g/s s nater <8 g/s OL 8 g/s snater <9 g/s OJ. 9 g/s snwater < 10 g/s OK. 10 g/s s nyater< 11 g/s OL 11 g/s s nyater < 12 g/s O M. 12 g/s s nater< 13 g/s ON. 13 g/s s nwater 14 g/s 0 o. Pater> 14 g/s
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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Transcribed Image Text:Atmospheric (1 atm) air with a relative humidity of 40% blows over a smooth, wet flat plate. The plate is 0.6 m long (in the direction of the wind flow) and 3 m wide. The free stream velocity of
air is 21 m/s. What is the mass transfer rate (na) of the water from the surface?
• You may assume that the air, water, and plate are all at 330 K.
• Relative humidity is defined as the density of water in the air-water mixture divided by the density of water at saturation.
O A. 0 g/s s nwater * 1 g/s
O B. 1 g/s s nwater * 2 g/s
OC. 2 g/s s nater 3 g/s
OD. 3 g/s s nwater 4 g/s
O E. 4 g/s s nater <5 g/s
OF. 5 g/s s nwater 6 g/s
OG. 6 g/s s nvater 7 g/s
O H. 7 g/s s nyater <8 g/s
OL 8 g/s s nyater <9 g/s
O. 9 g/s s nwater < 10 g/s
OK. 10 g/s s nwater 11 g/s
OL 11 g/s s nuater < 12 g/s
O M. 12 g/s s nater < 13 g/s
ON. 13 g/s s nwater 14 g/s
O O. water 14 g/s
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