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A 4-m room is heated by the radiator of a steam-heating
Chapter 4, Problem 65P(choose chapter or problem)
A \94-\mathrm{m} \times 5-\mathrm{m} \times 7-\mathrm{m}\) room is heated by the radiator of a steam-heating system. The steam radiator transfers heat at a rate of \(10,000 \mathrm{~kJ} / \mathrm{h}\), and a \(100-\mathrm{W}\) fan is used to distribute the warm air in the room. The rate of heat loss from the room is estimated to be about \(5000 \mathrm{~kJ} / \mathrm{h}\). If the initial temperature of the room air is \(10^{\circ} \mathrm{C}\), determine how long it will take for the air temperature to rise to \(20^{\circ} \mathrm{C}\). Assume constant specific heats at room temperature.
Equation Transcription:
10°C
20°C
Text Transcription:
4-m times 5-m times 7-m
10,000 kJ/h
100-W
5000 kJ/h
10 degree celsius
20 degree celsius
Questions & Answers
QUESTION:
A \94-\mathrm{m} \times 5-\mathrm{m} \times 7-\mathrm{m}\) room is heated by the radiator of a steam-heating system. The steam radiator transfers heat at a rate of \(10,000 \mathrm{~kJ} / \mathrm{h}\), and a \(100-\mathrm{W}\) fan is used to distribute the warm air in the room. The rate of heat loss from the room is estimated to be about \(5000 \mathrm{~kJ} / \mathrm{h}\). If the initial temperature of the room air is \(10^{\circ} \mathrm{C}\), determine how long it will take for the air temperature to rise to \(20^{\circ} \mathrm{C}\). Assume constant specific heats at room temperature.
Equation Transcription:
10°C
20°C
Text Transcription:
4-m times 5-m times 7-m
10,000 kJ/h
100-W
5000 kJ/h
10 degree celsius
20 degree celsius
ANSWER:
Step 1 of 3
Given Data:
The local atmospheric pressure is 
The initial temperature is 
The final temperature is 
The volume of the room is
The gas constant of air is 
The power of fan is as,
