Gauge pressure of air
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
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Question
Solve only second part of this

Transcribed Image Text:5°C. Assume that the volume of the football remains
A football was inflated to a gauge pressure of 1 bar when
the ambient temperature was 15°C. When the game
started next day, the air temperature at the stadium was
cor Assume that the volume of the football remains
constant at 2500 cm3.
The amount of heat lost by the air in the football
and the gauge pressure of air in the football at the
stadium respectively equal
(a) 30.6 J, 1.94 bar
(c) 61.1 J, 1.94 bar d) 43.7 J, 0.93 bar
(b) 21.8 J, 0.93 bar
Gauge pressure of air to which the ball must have
been originally inflated so that it would be equal 1
bar gauge at the stadium is
(a) 2.23 bar
(c) 1,07 bar
(b) 1.94 bar
(d) 1.00 bar
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