14. Two vessels both containing nitrogen, are connected by a valve which is opened to allow the contents to mix and achieve an equilibrium temperature of 27°C. Before mixing the following information is known about the gases in the two vessels. Vessel A Vessel B p = 15 bar t = 50°C Contents = 0.5 kg mole Calculate the final equilibrium pressure and amount of heat transferred to the surroundings. If the vessel had been perfectly insulated, calculate the final temperature and pressure which would have been p= 6 bar t = 20°C Contents = 2.5 kg reached. Take y = 1.4. [Ans. 11.68 bar, - 226.2 kJ, 45.5°C, 12.4 bar)

14. Two vessels both containing nitrogen, are connected by a valve which is opened to allow the contents to mix and achieve an equilibrium temperature of 27°C. Before mixing the following information is known about the gases in the two vessels. Vessel A Vessel B p = 15 bar t = 50°C Contents = 0.5 kg mole Calculate the final equilibrium pressure and amount of heat transferred to the surroundings. If the vessel had been perfectly insulated, calculate the final temperature and pressure which would have been p= 6 bar t = 20°C Contents = 2.5 kg reached. Take y = 1.4. [Ans. 11.68 bar, - 226.2 kJ, 45.5°C, 12.4 bar)

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

Related questions

Q: Problem 4 Determine the change in internal energy, ∆u, and enthalpy, ∆h, for oxygen, in kJ/kg, as it…

A: T1 = 600 KT2 = 1200 KO2 gasThe change in temperature,

Q: The valve between a 9L tank containing gas at 5 atm and a 6 L tank containing gas at 10 atm is…

Q: A vessel having a capacity of 0.05 m3 contains a mixture of saturated water an saturated steam at a…

Q: If you place 10.0 L of methanol (CH4O) in a sealed room that is 4.75 m long, 2.5 m wide, and 2.5 m…

Q: A cylinder contains oxygen at a pressure of 2.00 atm. The volume is 4.00 L, and the temperature is…

A: Given data:-Initial volume, V1=4L=4×10-3m3Initial pressure, P1=2atm=202.65kPaInitial temperature,…

Q: 20 kg of hot water enters a mixing chamber at 90 oC where it is mixed with cold water which entered…

A: Given data: m1=20 kgT1=90°CT2=10°CM=33 kg Need to determine the enthalpy of the water after mixing.

Q: A container with a volume of 280 liters contains an ideal gas mixture at 40°C and 6.9 bar with a…

Q: Let P and T be the pressure and temperature of the super-heated vapor and Psat be the saturation…

A: Introduction: Superheated steam has the qualities of a perfect gas rather than a vapor. Because…

Q: A gas mixture has the following mass basis composition 35% co2, 50% hydrogen, and 15% nitrogen. The…

A: Given:- Initial condition: Pi= 900 kPa Ti= 100°C Finial condition: Pf=300 kPa Tf=40 °C Composition…

Q: Use the data from this table of thermodynamic properties to calculate the values of AS for each of…

Q: At 250°C a mixture of saturated steam and liquid water exists in equilibrium, If the specific volume…

Q: At a pressure of 900 kPa, the specific enthalpy is 2000 kJ/kg. What is the phase of the water? a.…

Concept explainers

Properties of Pure Substances

A substance with fixed chemical composition throughout is called a pure substance like water, air, and nitrogen. A pure substance does not have to be a single element or compound. A mixture of two or more phases of a pure substance is also a pure substance as long as the chemical composition is the same for all phases. These substances mainly have a constant/ uniform composition. The substances also have fixed boiling and melting points. A pure substance takes part in a chemical reaction to form predictable products.

Question

14. Two vessels both containing nitrogen, are connected by a valve which is opened to allow the contents to
mix and achieve an equilibrium temperature of 27°C. Before mixing the following information is known
about the gases in the two vessels.
Vessel A
Vessel B
p = 15 bar
t = 50°C
Contents = 0.5 kg mole
Calculate the final equilibrium pressure and amount of heat transferred to the surroundings. If the
vessel had been perfectly insulated, calculate the final temperature and pressure which would have been
reached.
p = 6 bar
t = 20°C
Contents = 2.5 kg
Take y = 1.4.
[Ans. 11.68 bar, – 226.2 kJ, 45.5°C, 12.4 bar]

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step 5

Trending now

This is a popular solution!

Step by step

Solved in 5 steps with 11 images

SEE SOLUTION Check out a sample Q&A here

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.

Similar questions

If water with a mass mh at temperature Th is poured into an aluminum cup of mass mAl containing mass mc of water at Tc, where Th >Tc, what is the equilibrium temperature of the system?
RP-1 is highly refined form of kerosene used for many first stage rocket engines. The average composition of it is indicated by CH1.9 a. What is the stoichiometric mixture ratio (MR) for RP-1 and oxygen? b. Now, you have a mixture of air and RP-1 with three times more air (in terms of moles) than is needed to burn all the fuel. How high is the final temperature? The heats of formation are given in the table below. In molar quantities, assume 1 mole of air is (O2+3.76N2). The reactants have a temperature of 25°C before combustion. You may use the average values of the specific heats for each constituent. C. Would the adiabatic flame temperature be lower or higher for a rocket engine that uses pure oxygen instead of air? Explain. Constituent Qf kJ/kmol @ 298 K Cp kJ/kmol K CH19 9,358 CO2 (g) -393,522 51.9 O2 (g) 0 34.0 N2 (g) 0 31.6 H₂0 (g) -241.827 40.6
4. A cylindrical tank 1.3m in diameter and 2m high contains methanol (CH3OH) at a pressure of 540 kPag and a temperature of 40°C. Later, because of leak, it was found that the gage pressure has dropped to 425 kPag, and the temperature has decreased to 28°C, determine the mass of methanol that has leaked out.
Problem 4: A supply line contains a two-phase mixture of steam and water at 240 °C. To determine the quality of the mixture a device called a throttling calorimeter is used. In this device a small sample of the two-phase mixture is bled off the line and expanded through a throttling valve to atmospheric pressure (100 kPa). The temperature of the steam sample, T2, is measured on the downstream side of the valve. Find the quality of the mixture in the supply line for the following two cases: a. T2 = 125 °C. b. T2 = 150 °C. (Note that the two samples are superheated vapor because at the given temperatures, the temperature is above the boiling temperature for water at 100 kPa.) Steam - Water T, = 240 C Calorimeter P= 100 kPa Supply Line Flow
Solve first question only.
H.W. / A closed vessel having a volume of 5 m³ contains 10 kg of a liquid water and water vapor mixture in equilibrium at a pressure of 350 kPa . Calculate: 1) The volume and mass of the liquid. 2) The volume and mass of the vapor. (at a pressure of 6 bar Take: v, = 0.001079, and v, = 0.52422m)
2. The gas expanding in the combustion space of a reciprocating engine has an initial pressure of 5o bar and an initial temperature of 1623 C. The initial volume is 50000 mm' and the gas expands through a volume ratio of 20 according to the law pV = constant. Calculate w and AU Take R = 270 J/Kg K and C, = 800 J/Kg K. Assume n = 1.38
V. W. Th To %3D Room temperature T = 293 K V V. Vp The gas volume changes from Vp to Va at constant temperature T. The cartoon on the right shows a piston of gas undergoing this compression while submerged in a container of room temperature water, which acts as a reservoir. The initial state of this process is a piston containing 2 moles of a monatomic gas at Tc = 293 K (room temperature water) and volume V = a 1.0 m. The gas is compressed until V, = 0.2 m. During the compression, the heat bath of room temperature water maintains the temperature of the gas at T 293 K. Calculate the work done in joules by the gas during this process. Do not include units in your answer. Be careful to use the standard sign convention for work done by the gas. Write your numerical answer in normal form as described above in the instructions to this worksheet.
calculate the volume of 87% dry steam at 1200 kpa ?.
Thirty pounds of ice at 32OF is placed in 100 lbs of water at 100 O The latent heat of ice may be taken as 144 BTU per lb. If no heat is lost or added to the mixture, the temperature (in Farhenheit) when equilibrium is reached is: a. None of these b. 51 c. 48 d. 49 e. 50
help me (d e f )
i need the answer quickly