Do not give answer in image and hand writing A piston - cylinder system is filled with air. Initially, the air is at 489 kPa and 26\deg C. Then air isexpanded to 1.9 times its original volume. Air is assumed to be an ideal gas. Assume the expansionprocess is polytropic with polytropic exponent n = 1.2. a. Find the change in entropy usingconstant specific heats at 300 K. b. Find the change in internal energy using constant specificheats at 300 K. c. Find the change in entropy considering specific heats are temperature -dependent. d. Find the change in internal energy considering specific heats are temperature -dependent.

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A piston - cylinder system is filled with air. Initially, the air is at 489 kPa and 26\deg C. The expanded to 1.9 times its original volume. Air is assumed to be an ideal gas. Assume the process is polytropic with polytropic exponent n = 1.2. a. Find the change in entropy u constant specific heats at 300 K. b. Find the change in internal energy using constant sp heats at 300 K. c. Find the change in entropy considering specific heats are temperature dependent. d. Find the change in internal energy considering specific heats are tempera

A piston - cylinder system is filled with air. Initially, the air is at 489 kPa and 26\deg C. The expanded to 1.9 times its original volume. Air is assumed to be an ideal gas. Assume the process is polytropic with polytropic exponent n = 1.2. a. Find the change in entropy u constant specific heats at 300 K. b. Find the change in internal energy using constant sp heats at 300 K. c. Find the change in entropy considering specific heats are temperature dependent. d. Find the change in internal energy considering specific heats are tempera

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

Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.

Question

Do not give answer in image and hand writing

A piston - cylinder system is filled with air. Initially, the air is at 489 kPa and 26\deg C. Then air is
expanded to 1.9 times its original volume. Air is assumed to be an ideal gas. Assume the expansion
process is polytropic with polytropic exponent n = 1.2. a. Find the change in entropy using
constant specific heats at 300 K. b. Find the change in internal energy using constant specific
heats at 300 K. c. Find the change in entropy considering specific heats are temperature -
dependent. d. Find the change in internal energy considering specific heats are temperature -
dependent.

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