Calculate the amount of heat which enters or leaves 1kg of steam initially at 0.5MPa and 250OC, when it undergoes the following processes: a. It is confined by a piston in a cylinder and is compressed to 1MPa and 300OC as the piston does 200 kJ of work on the steam. b. It passes in steady flow through a device and leaves at 1MPa and 300OC while, per kg of steam flowing through it, a shaft puts in 200 kJ of work. No changes in KE and PE. c. It flows into an evacuated rigid container from a large source which is maintained at the initial condition of the steam. Then 200 kJ of shaft work is transferred to the steam, so that its final condition is 1MPa and 300OC.
Calculate the amount of heat which enters or leaves 1kg of steam initially at 0.5MPa and 250OC, when it undergoes the following processes: a. It is confined by a piston in a cylinder and is compressed to 1MPa and 300OC as the piston does 200 kJ of work on the steam. b. It passes in steady flow through a device and leaves at 1MPa and 300OC while, per kg of steam flowing through it, a shaft puts in 200 kJ of work. No changes in KE and PE. c. It flows into an evacuated rigid container from a large source which is maintained at the initial condition of the steam. Then 200 kJ of shaft work is transferred to the steam, so that its final condition is 1MPa and 300OC.
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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Calculate the amount of heat which enters or leaves 1kg of steam initially at 0.5MPa and
250OC, when it undergoes the following processes:
a. It is confined by a piston in a cylinder and is compressed to 1MPa and 300OC
as the piston does 200 kJ of work on the steam.
b. It passes in steady flow through a device and leaves at 1MPa and 300OC
while, per kg of steam flowing through it, a shaft puts in 200 kJ of work. No
changes in KE and PE.
c. It flows into an evacuated rigid container from a large source which is
maintained at the initial condition of the steam. Then 200 kJ of shaft work is
transferred to the steam, so that its final condition is 1MPa and 300OC.
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