1. An ideal gas whose mass is 1.36 kg m, R = 204.51 J/kg m and k = 1.6667. Heat added during a reversible nonflow constant pressure change of state is 316.5 kJ. The initial temperature is 37.78 o C. Determine a) change in entropy (kJ/K), b) Work (kJ), c) ratio of expansion or V 2 /V 1. 2. An adiabatic expansion of air occurs through a nozzle (W s = 0) from 850 kPa and 75 o C to 140 kPaa. For an isentropic expansion find: specific volume (m 3 /kg m ), temperature ( o C), and velocity (m/s) at the exit section assuming initial kinetic energy is negligible. (PLS SHOW COMPLETE SOLUTION AND WRITE PROPERLY) (PLEASE ANSWER BOTH QUESTIONS PLEASE)
1. An ideal gas whose mass is 1.36 kg m, R = 204.51 J/kg m and k = 1.6667. Heat added during a reversible nonflow constant pressure change of state is 316.5 kJ. The initial temperature is 37.78 o C. Determine a) change in entropy (kJ/K), b) Work (kJ), c) ratio of expansion or V 2 /V 1. 2. An adiabatic expansion of air occurs through a nozzle (W s = 0) from 850 kPa and 75 o C to 140 kPaa. For an isentropic expansion find: specific volume (m 3 /kg m ), temperature ( o C), and velocity (m/s) at the exit section assuming initial kinetic energy is negligible. (PLS SHOW COMPLETE SOLUTION AND WRITE PROPERLY) (PLEASE ANSWER BOTH QUESTIONS PLEASE)
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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DRAW THE PV, TS DIAGRAMS AND SOLVE THE FOLLOWING
1. An ideal gas whose mass is 1.36 kg m, R = 204.51 J/kg m and k = 1.6667. Heat added during a reversible nonflow constant pressure change of state is 316.5 kJ. The initial temperature is 37.78 o C. Determine a) change in entropy (kJ/K), b) Work (kJ), c) ratio of expansion or V 2 /V 1.
2. An adiabatic expansion of air occurs through a nozzle (W s = 0) from 850 kPa and 75 o C to 140 kPaa. For an isentropic expansion find: specific volume (m 3 /kg m ), temperature ( o C), and velocity (m/s) at the exit section assuming initial kinetic energy is negligible.
(PLS SHOW COMPLETE SOLUTION AND WRITE PROPERLY)
(PLEASE ANSWER BOTH QUESTIONS PLEASE)
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