Homework Help is Here – Start Your Trial Now!
Engineering
Mechanical Engineering
Questions 56-60 are based on the information given here. Air, as an ideal gas, undergoes a reversible process in a piston-cylinder assembly from Pi-100 kPa and T= 300K to P: 5.4 MPa and T: 900K. [cp 1.005 kJ/kg-K, c,- 0.718 kJ/kg-K) 56. The change in the internal energy of the gas in kJ/kg is a. 172.2 430.8 b. 603.0 с. cannot be determined. 57. The change in the enthalpy of the gas in kJ/kg is d. a. 172.2 b. 430.8 C. 603.0 d. cannot be determined. 58. The change in entropy for the gas in kJ/kg•K is a. +2.246 b. -2.246 -0.0407 с. d. +0.0407 59. The specific heat ratio k for the gas is a. 0.287 0.718 b. 1.005 d. 1.400 60. The gas constant R for the gas in kJ/kg•K is с. a. 0.287 b. 0.718 1.005 C. d. 1.400

Questions 56-60 are based on the information given here. Air, as an ideal gas, undergoes a reversible process in a piston-cylinder assembly from Pi-100 kPa and T= 300K to P: 5.4 MPa and T: 900K. [cp 1.005 kJ/kg-K, c,- 0.718 kJ/kg-K) 56. The change in the internal energy of the gas in kJ/kg is a. 172.2 430.8 b. 603.0 с. cannot be determined. 57. The change in the enthalpy of the gas in kJ/kg is d. a. 172.2 b. 430.8 C. 603.0 d. cannot be determined. 58. The change in entropy for the gas in kJ/kg•K is a. +2.246 b. -2.246 -0.0407 с. d. +0.0407 59. The specific heat ratio k for the gas is a. 0.287 0.718 b. 1.005 d. 1.400 60. The gas constant R for the gas in kJ/kg•K is с. a. 0.287 b. 0.718 1.005 C. d. 1.400

Elements Of Electromagnetics
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
See similar textbooks
icon
Related questions
Question

answer 59,60

**Thermodynamic Keys: Property Relations** The following questions (56-60) are based on the information provided below. Air, considered here as an ideal gas, undergoes a reversible process in a piston-cylinder assembly from: - Initial pressure \( P_1 = 100 \, \text{kPa} \) - Final pressure \( P_2 = 5.4 \, \text{MPa} \) - Initial temperature \( T_1 = 300 \, \text{K} \) - Final temperature \( T_2 = 900 \, \text{K} \) Given properties: - Specific heat at constant pressure \( c_p = 1.005 \, \text{kJ/kg} \cdot \text{K} \) - Specific heat at constant volume \( c_v = 0.718 \, \text{kJ/kg} \cdot \text{K} \) --- **56.** The change in the internal energy of the gas in kJ/kg is: - a. 172.2 - b. 430.8 - c. 603.0 - d. cannot be determined. **57.** The change in the enthalpy of the gas in kJ/kg is: - a. 172.2 - b. 430.8 - c. 603.0 - d. cannot be determined. **58.** The change in entropy for the gas in kJ/kg·K is: - a. +2.246 - b. −2.246 - c. −0.0407 - d. +0.0407 **59.** The specific heat ratio \( k \) for the gas is: - a. 0.287 - b. 0.718 - c. 1.005 - d. 1.400 **60.** The gas constant \( R \) for the gas in kJ/kg·K is: - a. 0.287 - b. 0.718 - c. 1.005 - d. 1.400 *Note: There are no graphs or diagrams included in this content.*
Transcribed Image Text:**Thermodynamic Keys: Property Relations** The following questions (56-60) are based on the information provided below. Air, considered here as an ideal gas, undergoes a reversible process in a piston-cylinder assembly from: - Initial pressure \( P_1 = 100 \, \text{kPa} \) - Final pressure \( P_2 = 5.4 \, \text{MPa} \) - Initial temperature \( T_1 = 300 \, \text{K} \) - Final temperature \( T_2 = 900 \, \text{K} \) Given properties: - Specific heat at constant pressure \( c_p = 1.005 \, \text{kJ/kg} \cdot \text{K} \) - Specific heat at constant volume \( c_v = 0.718 \, \text{kJ/kg} \cdot \text{K} \) --- **56.** The change in the internal energy of the gas in kJ/kg is: - a. 172.2 - b. 430.8 - c. 603.0 - d. cannot be determined. **57.** The change in the enthalpy of the gas in kJ/kg is: - a. 172.2 - b. 430.8 - c. 603.0 - d. cannot be determined. **58.** The change in entropy for the gas in kJ/kg·K is: - a. +2.246 - b. −2.246 - c. −0.0407 - d. +0.0407 **59.** The specific heat ratio \( k \) for the gas is: - a. 0.287 - b. 0.718 - c. 1.005 - d. 1.400 **60.** The gas constant \( R \) for the gas in kJ/kg·K is: - a. 0.287 - b. 0.718 - c. 1.005 - d. 1.400 *Note: There are no graphs or diagrams included in this content.*
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Fluid Kinematics
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Elements Of Electromagnetics
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Control Systems Engineering
Control Systems Engineering
Mechanical Engineering
ISBN:
9781118170519
Author:
Norman S. Nise
Publisher:
WILEY
Mechanics of Materials (MindTap Course List)
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:
9781337093347
Author:
Barry J. Goodno, James M. Gere
Publisher:
Cengage Learning
Engineering Mechanics: Statics
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:
9781118807330
Author:
James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:
WILEY
SEE MORE TEXTBOOKS