Question 8 of 10 - F2023_HW_03

Given information is attached. A. Estimate the temperature of the saturated steam at 15.0 bar. (In degrees Celsius) B. Estimate the temperature of the superheated steam at 20.0 bar.

question 2 please

estion Completion Status: QUESTION 26 Carbon dioxide (molar mass 44 kg/kmol) expands reversibly in a perfectly thermally insulated cylinder from 3.7 bar, 220 °C to a volume of 0 085 m If the initial volume OCcupied was 0 02 m calculate the gas constant to 3 decimal places. Assume nitrogen to be a perfect gas and take cv = 0 63 k J/kg K QUESTION 27 High-P Low-P Lurh

SN is equal to 18

Please state if any steam table values are used

=conetant procabese n=0 -n=½ n=2 n=1 7 A fixed mass of an ideal gas undergoes a polytropic process, from an initial pressure, temperature and volume of 180 kPa, 40°C and 1.5 m³ to a final temperature and volume of 180°C and 2.6 m³. How much work is done by the gas in this process (in kJ)? Your Answer: units Answer ph

An ideal gas contained in a piston-and-cylinder device undergoes a thermodynamic cycle made up of three quasi-equilibrium processes. Step 1-2: Adiabatic compression from 330 K and 9.35 atm to 12.58 atm Step 2-3: Isobaric cooling Step 3-1: Isothermal expansion   c.) Calculate Q, W, ΔU and ΔH, in J/mole, for each step in the process and for the entire cycle. Assume that CP = (5/2) R. d.) Is this cycle a power cycle or a refrigeration cycle?  Explain. Calculate the thermal efficiency or COP of the cycle, whichever is appropriate.

Air in a rigid tank is at 200oC and 150 kPa. The air is cooled to a final equilibrium state of 60oC . i. Determine the change in pressure of the air, kPa. ii. Show and label the process on a temperature versus volume (P-v ) diagram. The gas constant for air, R is 0.287 kJ/kg.K and the universal gas constant, Ru is 8.314 kJ/kmol.K.

A cylinder and piston assembly contains water at 105°C and 85% quality, with a volume of 1 liter. The system heats up, causing the piston to rise and encounter a linear spring. At this point the volume is 1.5 L, the piston diameter is 150 mm and the spring constant is 100 N/mm. Heating continues, so the piston compresses the spring. What is the pressure in the spring when the temperature reaches 600°C? 25%.

QUESTION 43 Carbon dioxide (molar mass 44 kg/kmol) expands reversibly in a perfectly thermally insulated cylinder from 3.7 bar, 220 UC to a volume of 0085 m If the initial volume occupied was 0.02 m calculate the adiabatic index to 1 decimal place. Assume nitrogen to be a perfect gas and take cv = 0 63 k J / k g K.

QUESTION 60 Carbon dioxide (molar mass 44 kg/kmol) expands reversibly in a perfectly thermally insulated cylinder from 3.7 bar, 220 UC to a volume of 0.085 m. If the initial volume occupied was 0.02 m³ calculate the work input in kJ to 3 decimal places. Assume nitrogen to be a perfect gas and take cv = 0.63 k J/kg K. Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answers ype here to search 9°C 直

One mole of gas undergoes the cycle shown in the p-V diagram below. A Po B 1. D Po/32 Vo 2Vo 8V Volume 16V. (a) Classify each process in this cycle: A-B, B-C, C-D, and D-A. (b) Find y for this gas. (c) What type of gas is this, monatomic, diatomic, or polyatomic? Pressure

If you add the diagram it would be well and good. The question is from thermodynamics.

Please Label variables and note when steam table values are used.

The diagram presented represents a thermodynamic process experienced by 27.5mmol (millimoles) of a monatomic ideal gas. The volume axis is divided into equal increments υ0=777cm3 while the pressure axis is divided into equal increments p0=0.301atm. Part (a)  How much work, in joules, does the gas perform on its environment during the thermodynamic process represented in the diagram?  Part (b)  What is the change, in joules, of the internal energy of the gas during the process represented in the diagram?  Part (c)  How much heat, in joules, is absorbed by the gas during the process represented in the diagram?

6. Moist steam is contained in a sturdy sealed container (mass and volume unknown). If heating continues, choose all of the following possible and briefly explain why. (a) The mass of the vapor gradually increases. (b) The mass of the liquid gradually increases. (c) The ratio of liquid and gas does not change.

PROCESSES OF PURE SUBSTANCE: A 2-kg steam water mixture at 1.0 MPaa is contained in an inflexible tank. Heat is added until the pressure rises to 3.5 MPaa and the temperature to 400 0C. Determine: a) Heat transferred (kJ), b) ΔH (kJ), c)ΔS (kJ/k) (SHOW COMPLETE SOLUTION) (SHOW THE P-V AND T-S DIAGRAM PLEASE)

i. Draw a P-V graph to represent the changes undergone by the air  ii. Calculate the maximum volume of the air. iii. What is the maximum pressure of the air? iv. State how the net work done on the air for the whole process can bedetermined.

1) Air contained in a piston-cylinder assembly undergoes the power cycle shown in the figure. Assuming ideal gas behavior for the air, evaluate the thermal efficiency of the cycle. Isothermal process (bar) 3 5 v (m³/kg)

QUESTION 3 a) Air is contained in a vertical piston-cylinder assembly fitted with an electrical resistor. The atmosphere exerts a pressure of 1 bar on the top of the piston, which has a mass of 45 kg and a face area of 0.09 m?. Electric current passes through the resistor, and the volume of the air slowly increases by 0.0453 m while its pressure remains constant. The mass of the air is 0.27 kg, and its specific internal energy increases by 18.9 kl/kg. The air and piston are at rest initially and finally. The piston-cylinder material is a ceramic composite and thus a good insulator. Friction between the piston and cylinder wall can be ignored, and the local acceleration of gravity is g = 9.81 m/s. Determine the heat transfer from the resistor to the air, in kl, for a system consisting of: i. the air alone (Figure 4-a), and ii. the air and the piston (Figure 4-b). Piston System boundary for part (a) Apian Air V - V (a) - Piston System houndary for part (b) Air (b) Figure 4 b) An unknown…

Using the following information, determine the vapor pressure of water at 300 °C. Note: We started this problem in week 6 lecture 3. Please refer to the lecture to get started on this problem. You only need to show your work starting from where the lecture left off. H₂0 at T = 179.88 degrees C the vapor pressure is PSAT = 10 bar. The enthalpy of vaporization is 2014.59 kJ/kg V = 0.1944 m³/kg V¹ = 0.001127 m³/kg The equation we left off on in class was, cpf 1 [P² psat dpsat pi psat Tf 1 ∆vapH (TF 1 RAZ Ti dT T2a

A certain ideal gas has the following properties: Molecular Mass, M = 24.943416 kg/kmole and Cvo = 1.000 kJ/ºK/kg. Determine Cpo in kJ / °K / kg.

Carbon dioxide (molar mass 44 kg/kmol) expands reversibly in a perfectly thermally insulated cylinder from 3.7 bar, 220 0C to a volume of 0.085 m3. If the initial volume occupied was 0.02 m3, calculate the gas constant to 3 decimal places. Assume nitrogen to be a perfect gas and take cv = 0.63 k J / k g K

4 kmol of oxygen (O₂) gas undergoes a process in a closed system from p₁ = 50 bar, T₁ = 170 K to P2 = 25 bar, T₂ = 200 K. Determine the change in volume, in m³. xm³ AV = 1.82634

4. One kg of water at 47.8° C is heated under a constant pressure of 14 bar until it is converted into steam with 110° C of superheat. Determine the quantity of heat supplied during superheating and the total heat of superheated steam. Assume c, = 2.1 kJ/kg K. [Ans. 201 kJ: 2818 kJ] certain amount of team ir pro feration 08 Dw