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A student living in a 3.5m x 4m x 2.8m fourth bedroom turns on his 100W fan before leave the room on a summer day. She hopes the room will be cooler when she returns at night. Suppose the door and window are hermetically closed and rule out any heat transfer between the walls and Windows. Determine the temperature in the room when you return 10 hlater. The air in the room is at 100 kPa and 15°C in the morning when it comes out. Answer: 120.78°C

A student living in a 3.5m x 4m x 2.8m fourth bedroom turns on his 100W fan before leave the room on a summer day. She hopes the room will be cooler when she returns at night. Suppose the door and window are hermetically closed and rule out any heat transfer between the walls and Windows. Determine the temperature in the room when you return 10 hlater. The air in the room is at 100 kPa and 15°C in the morning when it comes out. Answer: 120.78°C

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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A student living in a 3.5m x 4m x 2.8m fourth bedroom turns on his 100W fan before leave the room on a summer day. She hopes the room will be cooler when she returns at night. Suppose the door and window are hermetically closed and rule out any heat transfer between the walls and Windows. Determine the temperature in the room when you return 10 h later. The air in the room is at 100 kPa and 15°C in the morning when it comes out. Answer: 120.78°C
Transcribed Image Text:A student living in a 3.5m x 4m x 2.8m fourth bedroom turns on his 100W fan before leave the room on a summer day. She hopes the room will be cooler when she returns at night. Suppose the door and window are hermetically closed and rule out any heat transfer between the walls and Windows. Determine the temperature in the room when you return 10 h later. The air in the room is at 100 kPa and 15°C in the morning when it comes out. Answer: 120.78°C
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