Part DAssume the heat is now off in the room, after a very long time the temperature in the room will be,O 20°C,greater than 20°C,lower than 20°CSubmitRequest AnswerPart EAssume the heat is off in the room and the room is sealed with the number of moles of air staying the same.If the room has a volume of 1m and initially at a pressure of 1 x 10° Pa with a temperatureof 20°C, the final pressure in the room after a very long time will be,less than 1 x 10° Pa.O 1x 10° Pa.greater than 1 x 105 Pa. The thermal conductivities of wood is kwood = 0.1W/(m°C)and air is kair = 0.0234W/(m°C).Part AIf the temperature of the room is 20°C and outside is 10°C,find the rate of heat flow for a wall of wood with area = 10 m² and thickness of 5cm.O 60 WO 304 WO 34 WO 200 WO 100 WSubmitRequest AnswerPart BThe wall of wood with thickness of 5cm is now replaced with two layers of woodand a gap of air between the wood. Each layer of wood has a 2.5cm thickness and the gap is 1cm.The rate of heat flow will,decreases.increases.stay the same.SubmitRequest AnswerPart CThe temperature in the air gap will be,O 20°C,between 10°C and 20°C,O 10°C,

Answered: Image /qna-images/answer/637a8ff8-79d5-425c-89e7-dda61e837d22.jpg

Part A If the temperature of the room is 20°C and outside is 10°C, find the rate of heat flow for a wall of wood with area = 10 m² and thickness of 5cm. O 60 W O 304 W O 34 W O 200 W O 100 W Submit Request Answer Part B The wall of wood with thickness of 5cm is now replaced with two layers of wood and a gap of air between the wood. Each layer of wood has a 2.5cm thickness and the gap is 1 The rate of heat flow will, decreases. increases. stay the same. Submit Request Answer Part C The temperature in the air gap will be, 20°C, O between 10°C and 20°C, O 10°C,

Part A If the temperature of the room is 20°C and outside is 10°C, find the rate of heat flow for a wall of wood with area = 10 m² and thickness of 5cm. O 60 W O 304 W O 34 W O 200 W O 100 W Submit Request Answer Part B The wall of wood with thickness of 5cm is now replaced with two layers of wood and a gap of air between the wood. Each layer of wood has a 2.5cm thickness and the gap is 1 The rate of heat flow will, decreases. increases. stay the same. Submit Request Answer Part C The temperature in the air gap will be, 20°C, O between 10°C and 20°C, O 10°C,

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter2: Steady Heat Conduction

Section: Chapter Questions

Problem 2.60P

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