Explanation Write the formula to calculate the mass of the gas ( m ) from the ideal gas equation. m = P V R T (I) Here, pressure of the gas is P , volume of the gas is V , gas constant is R and the temperature of the gas is T . Write the energy balance equation for the heat transfer between the two gases. E in − E out = Δ E system 0 = [ m c v ( T 2 − T 1 ) ] N 2 + [ m c v ( T 2 − T 1 ) ] He (II) Here, mass of the gas is m , constant volume specific heat is c v , final temperature is T 2 , and the initial temperature is T 1 . Conclusion: From the Table A-1 of “Molar mass, gas constant, and critical point properties”, obtain the gas constant of Helium and gas constant of Nitrogen as 2.0769 kPa ⋅ m 3 / kg ⋅ K and 0.2968 kPa ⋅ m 3 / kg ⋅ K respectively. From the Table A-2 of “Ideal-gas specific heats of various common gases”, obtain the constant volume specific heat of Helium and constant volume specific heat of Nitrogen as 3.1156 kJ / kg ° C and 0.743 kJ / kg ° C respectively. Substitute 500 kPa for P 1 , 1 m 3 for V , 0.2968 kPa ⋅ m 3 / kg ⋅ K for R , and 120 ° C for T 1 in Equation (I). m N 2 = 500 kPa × 1 m 3 0.2968 kPa ⋅ m 3 / kg ⋅ K × 120 ° C = 500 kPa × 1 m 3 0.2968 kPa ⋅ m 3 / kg ⋅ K × ( 120 + 273 ) K = 4

8th Edition

ISBN: 9780073398174

Author: Yunus A. Cengel Dr., Michael A. Boles

Publisher: McGraw-Hill Education

See similar textbooks

Concept explainers

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. T…

Videos

Question

Chapter 4.5, Problem 133RP

To determine

The final temperature at the equilibrium condition in cylinder.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 4.5, Problem 131RP

Chapter 4.5, Problem 134RP

Students have asked these similar questions

I tried this problem and don't know what I did wrong or how else I could approach it can you please help me out?

Q3: An engine produce 750 kW power and uses gaseous C12H26 as a fuel at 25 C; 200% theoretical air is used and air enters at 500 K. The products of combustion leave at 800 K. The heat loss from the engine is 175 kW. Determine the fuel consumption for complete combustion.

Qu 5 Determine the carburizing time necessary to achieve a carbon concentration of 0.30 wt% at a position 4 mm into an iron carbon alloy that initially contains 0.10 wt% C. The surface concentration is to be maintained at 0.90 wt% C, and the treatment is to be conducted at 1100°C. Use the data for the diffusion of carbon into y-iron: Do = 2.3 x10-5 m2/s and Qd = 148,000 J/mol. Express your answer in hours to three significant figures. show all work step by step problems formula material science

Chapter 4 Solutions

Thermodynamics: An Engineering Approach

Ch. 4.5 - An ideal gas at a given state expands to a fixed...Ch. 4.5 - Nitrogen at an initial state of 300 K, 150 kPa,...Ch. 4.5 - 4–3 The volume of 1 kg of helium in a...Ch. 4.5 - 4–4E Calculate the total work, in Btu, for process...Ch. 4.5 - 4–5 A piston–cylinder device initially contains...Ch. 4.5 - A pistoncylinder device with a set of stops...Ch. 4.5 - 4–7 A piston–cylinder device initially contains...Ch. 4.5 - 4–8 A mass of 5 kg of saturated water vapor at 300...Ch. 4.5 - 1 m3 of saturated liquid water at 200C is expanded...Ch. 4.5 - A gas is compressed from an initial volume of 0.42...

Knowledge Booster

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.