The heat-transfer rate to the surroundings from aperson at rest is about 100 W. Suppose theventilation system fails in an auditorium containing2000 people. Assume there is no heat transferthrough the auditorium walls.A. Determine the increase in internal energy of theair in the auditorium during the first 20 minafter the ventilation system fails. Express yourresult in MJ.B. Considering the auditorium and all of the peopleas a system, determine the increase in internalenergy (MJ) of the system. How do you explainthe fact that the temperature of the air increases?

Answered: The heat-transfer rate to the…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Related questions

Question

The heat-transfer rate to the surroundings from a
person at rest is about 100 W. Suppose the
ventilation system fails in an auditorium containing
2000 people. Assume there is no heat transfer
through the auditorium walls.
A. Determine the increase in internal energy of the
air in the auditorium during the first 20 min
after the ventilation system fails. Express your
result in MJ.
B. Considering the auditorium and all of the people
as a system, determine the increase in internal
energy (MJ) of the system. How do you explain
the fact that the temperature of the air increases?

Expert Solution

Step 1: Introduction

Internal energy is the amount of energy possessed by the molecule of the body . here the air is being considered whose energy is being increased . the heat coming out of the every person will leads to the increase in the temperature of the air because the heat is not allowed to pass trough the walls and ventilation system is not working

Here the temperature of the air will increase due the the fact that the all of heat is going to the environment only

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions