3.123 Air is confined to one side of a rigid container divided by a partition, as shown in Fig. P3.123. The other side is in tially evacuated. The air is initially at P 5 bar, T 500K and V, 0.2 m. When the partition is removed, the air expands to fill the entire chamber. Measurements show thes Va 2 V and P2= P/4. Assuming the air behaves as ideal gas, determine (a) the final temperature, in K and (b) th heat transfer, kJ.

3.123 Air is confined to one side of a rigid container divided by a partition, as shown in Fig. P3.123. The other side is in tially evacuated. The air is initially at P 5 bar, T 500K and V, 0.2 m. When the partition is removed, the air expands to fill the entire chamber. Measurements show thes Va 2 V and P2= P/4. Assuming the air behaves as ideal gas, determine (a) the final temperature, in K and (b) th heat transfer, kJ.

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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Concept explainers

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.

Question

3.123 Air is confined to one side of a rigid container divided
by a partition, as shown in Fig. P3.123. The other side is in
tially evacuated. The air is initially at p 5 bar, T,= s0K
and V 0.2 m. When the partition is removed, the air
expands to fill the entire chamber. Measurements show he
V 2 V and p2=Pi/4. Assuming the air behaves as a
ideal gas, determine (a) the final temperature, in K, and (b) the
heat transfer, kJ.
Remo vable
partition
=02 m²
S bar
00 K
Initially:
Vacuu m
Va- 2v,
P2 PA
Finallyy=

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