Fundamentals Of Thermodynamics
10th Edition
ISBN: 9781119494966
Author: Borgnakke, C. (claus), Sonntag, Richard Edwin, Author.
Publisher: Wiley,
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CA ges contained in a cylinder is compressed from 1 MPa and 0.05 m² to 2 MPa.
Compression is governed by pV4 = constant. Internal energy of gas is given by
U = 7.5 pV - 425, kj
where p is pressure in kPa and V is volume in m'. Determine heat, work and change in
internal energy assuming compression process to be quasistatic. Also find out work
interaction, if the 180 kJ of heat is transferred to system between same states. Also
explain, why is it different from above.
A rigid steel tank contains 0.5 kg R410A at 0°C
with a specific volume of 0.01 m³/kg. The whole
system is now heated to a room temperature of
25°C. Find the final P and the process heat transfer.
Q.3
Find the increase in unavailable energy
associated with transfer of 800kJ of heat
from a constant temperature system at
600K to another constant temperature at
400K. The ambient temperature is 300K.
A
150kJ
В
182kJ
C
200kJ
D
220kJ
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