Q3: Air at 15 C and 1.05 bar occupies 0,02 m'. The air heated at constant volume until the pressure is 2 bar. Then heated again at constant pressure until the temperature become 950 C. Calculate the total heat upply to hcat the air from 15 C to 950 C . Draw the p-o diagram for the processes.

Q3: Air at 15 C and 1.05 bar occupies 0,02 m'. The air heated at constant volume until the pressure is 2 bar. Then heated again at constant pressure until the temperature become 950 C. Calculate the total heat upply to hcat the air from 15 C to 950 C . Draw the p-o diagram for the processes.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter2: Matter And Energy

Section: Chapter Questions

Problem 30RQ: A gas is compressed inside a compressor's cylinder. When the piston is at its bottom dead center,...

See similar textbooks

Related questions

Q: Carbon dioxide (molar mass 44 kg/kmol) expands reversibly in a perfectly thermally insulated…

Q: 6. A 1.5m tank containing a one-third kilogram of an unknown ideal gas is pressurized at 200 kPaa.…

Q: 2kg of air occupying 0.7 m3, had an original temperature of 15°C. It was heated then at constant…

A: Given that, mass of air =2kg volume of air =0.7m3 initial temperature=15°C…

Q: A 100 liter tank contains a mixture of saturated liquid water and saturated steam at 370 °C. a) Find…

A: Given:V=100 Lvf=2.213*10-3 m3/Kgvg=4.925*10-3 m3/Kg

Q: Q2: Arigid tank of (0.3 m³) at 15.5 bar , if 90% of mass is liquid water, how much heat must be…

A: Given:-v=0.03 m3P=15.5 bar90% liquid waterTo find:-Heat added before tank just full of liquid

Q: 1) A certain quantity of air is initially at 200 kPa (absolute) and 35°C. If the final state after a…

A: Polytropic Process:- It is basically a process that obeys the relation of pressure, volume, and…

Q: 5. Two kilogram of certain gas with R = 0.218 kJ/kg-Kundergoes a process and results to the…

Q: steam at 100C saturated vapor underwent heat transfer isometrically to 1MPa. Find the change in…

Q: (a) P = 1 MPa, T=400 °C Find v in (m³/kg). Locate the state of system on a sketch of T-v diagram.…

A: A chemical that has a fixed chemical composition throughout is called a pure substance. It does not…

Q: A closed constant-volume system receives 10Kj of paddle work. The system contains a nitrogen at…

A: Given data: P1=340 kPaT1=5°CV1=0.1 m3T2=127°CW=-10 kJ Need to determine the heat added or heat…

Q: O A Vessel of 0.42 m³ volume is filled with saturated liquid and vapor in equilibrium at 20 bar. If…

Q: 3. In a hot water heating system, water heated to 95°C and then is pumped at the rate of 4 L/min…

A: Given data: Q˙=4 L/min=4×10-3×60 m3/hr=0.24m3/hrT1=95°CTR=85°C Need to determine the heat released…

Q: 3. A piston-cylinder contains ideal CO (carbon monoxide, M=28.01 Ib/lbmol) that undergoes a process…

Q: 2.2) A cylinder and piston assembly contain water at 105°C and 85% quality, with a volume of one…

A: Given that: T1 = 105 C, x = 85%, V1 = 1L V2 = 1.5 L D = diameter of the piston k = spring constant…

Q: One kilogram of steam at 17 bar and 85% quality expands isothermally to a pressure of 0.7 bar. Find…

Q: possible temperature, till it contains saturated liquid. a. Find the mass of steam and that of air…

Q: A piston–cylinder assembly contains 2 lb of water, initially at 100 lbf/in.2 and 400°F. The water…

A: Given:

Q: A closed, rigid tank is filled with water. Initially, the tank holds 9.9 ft3 of saturated vapor and…

Q: Find the internal energy at the given state, Btu/lb

Q: Carbon dioxide (molar mass 44 kg/kmol) expands reversibly in a perfectly thermally insulated…

A: Any thermodynamic process can be shown by the following equation: PVn=C As n varies, the process…

Q: Ql: A closed steel bottle contains ammonia at -20°C, x 20% and the volume is 0.05 m3.It has a safety…

A: This is problem of variable flow processes Initial conditions of of ammonia temperature t1 = -20oC…

Q: Q4) A Vessel of 0.42 m' volume is filled with saturated liquid and vapor in equilibrium at 20 bar.…

A: Given data:- Pressure (P) =20 bars x=(1_0.99) = 0.01

Q: A piston-piston system contains water that is at an initial tempera quality of 65%. The piston moves…

A: GivenT1=99.6°Cx1=65%=0.65T2=200°Cwork done by fluid=300Kj

Q: A cake baked at 210°F is taken out of the oven and cooled to 70°F. After 10 minutes, the cake…

Q: 4.19 A balloon behaves such that the pressure inside is proportional to the diameter squared. It…

A: Write the given values with the suitable variables. m=2 kgx=60%=0.6P2=600 kPa Here, m, x, and P2 are…

Q: 1. Ammonia in a closed, rigid container undergoes a constant volume process from 2 MPa, 100 °C to T2…

A: Given data: P1=2 MPa , T1=100°C For state 1, at P1=2 MPa , saturation temperature, Tsat=49.37 °C As,…

Q: 5. The piston/cylinder as shown in figure 2 contains 0.1 kg water at 500 C, 1000 kPa. The piston has…

A: Data given-. T1 = 500°C P1 = 100 kPa Specific volume v1s = v1 / 2 m = 0.1 kg Temprature of…

Q: There are 3 kg/min of steam undergoing an isothermal process from 30 bar and 350 o C to 7 bar. (note…

A: Given Data Initial temperature, T1=350.C=625K Initial pressure, P1=30 bar =30(105Pa) Final…

Q: If an ideal gas undergoes a process where the change in enthalpy (Δh) is 424 kJ/kg, and the change…

Q: ith 3% moisture, 2.5 kg of steam has an enthalpy of 6600 kJ. It is heated at constant pressure to a…

Q: Q-2) As shown in the figure below, a system of piston and cylinder configuration has a linear spring…

Q: piston/cylinder contains air at 600 kPa, 290 K and a volume of 0.01 m3A constant- pressure process…

A: Initial Pressure = P1 = 600 KPa Initial Temperature = T1 = 290 K Initial Volume = V1 = 0.01 m3…

Q: 10 litres of hot water at 70° C is mixed with an equal volume of cold water at 20° C. Find the…

Q: A quantity of a certain perfect gas is compressed from an initial state of 0.081 m, 1 bar to a final…

Q: If 300 kcal of constant volume of heat is given to 1 kp air at 20 oC, find its final temperature…

A: Given that, Heat transfer of air at constant volume, Q=300 kcal,Initial pressure of air, P=1…

Q: Oxygen (molar mass 32 kg/kmol) expands reversibly in a cylinder behind a piston at a constant…

Q: 3) v/3 The pressure change of a balloon depends on the equation P = C.V (C = 100kPa / m and n = -1 /…

Q: Consider the piston/cylinder arrangement in the attached figure. A frictionless piston is free to…

Q: Carbon dioxide (molar mass 44 kg/kmol) expands reversibly in a perfectly thermally insulated…

Q: Given: P3 = 4 kPa, x3 = 0.6 , P4 = 4 kPa, T1 = 25 oC, T2 = 35 oC, mdot_steam = 25 kg/s. Find…

Q: 5.5 kg of steam at 13.35 bar with a quality of 70% transfers 5000 kJ of steam heat at a constant…

Q: A piston–cylinder assembly contains 2 lb of water, initially at 100 lbf/in.2 and 400°F. The water…

A: Given:

Q: 2. Saturated steam at 100°C is heated to 350°C at constant pressure. Use the steam tables to…

Q: Carbon dioxide (molar mass 44 kg/kmol) expands reversibly in a perfectly thermally insulated…

A: Any thermodynamic process can be shown by the following equation: PVn=C As n varies the process…

Q: 2) If an ideal gas undergoes a process where the change in enthalpy (Δh) is 424 kJ/kg, and the…

Q: One cubic meter of oxygen at initial pressure of 1 bar and a temperature of 17°C are compressed…

Q: Problem 5. A piston-cylinder assembly contains 0.15 kg of H2O in an initial state where the fluid is…

A: Given data as per question Mass of water contained = 0.15 kg Pressure maintained = 400 kpa Heat…

Concept explainers

Basic Thermodynamic Processes

The word 'thermodynamics' can be divided into two words, 'thermo' and 'dynamics'. The word thermo deals with the heat and thermal phenomenon, whereas dynamics deals with forces or external agent that drives the heat flow or aids in the motion of heat.

Question

100%

Thermodynamics

Q3: Air at 15 C and 1.05 bar occupies 0,02 m'. The air heated at constant volume until the pressure is
12 bar. Then heated again at constant pressure until the temperature become 950 C. Calculate the total heat
upply to hcat thc air from 15 C to 950 C . Draw the p-v diagram for the
processes.

Science that deals with the amount of energy transferred from one equilibrium state to another equilibrium state.

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 1 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

A Piston-Cylinder arrangement initially contains 3 kg of water as saturated liquid at 200 kPa pressure. Then, heat transfer to water, some of the water evaporates and the piston rises. When the volume is 60 liters, the piston touches the stoppers. Heating process continues until the pressure is twice the initial pressure. Plot the state change on the P-v diagram showing the saturation curves. Also, A) Finally, find the mass of the system in liquid phase. B) Find the final temperature. C) Calculate the total work done and heat transfer during the process.
Saturated vapor water at 200 C0 is cooled to 100 C∘ at constant pressure process. Find : 1- the final specific volume. 2- the specific work and heat transfer. 3- draw the process on a T-v and P-v diagrams.
Water (1 kg) at 20 °C is placed in contact with a 50 °C reservoir. After it equilibrates, it is placed in contact with a 100 °C reservoir until it equilibrates. Calculate ΔStot (in kJ K-1, note units) of the process. Let cwater = 4.2 kJ/kg-K.
Given: P3 = 4 kPa, x3 = 0.6 , P4 = 4 kPa, T1 = 25 oC, T2 = 35 oC, mdot_steam = 25 kg/s. Find mdot_water (kg/s).mdot_water = _________ kg/s.
Question: 2 kg mass of ammonia initially at P1=7 bars and T1=180 centigrade undergo a constant pressure process to a final state where quality is 85% determine the work for the process kilojoule Note: please do it clear and step wisely thanks in advanced........
Find the specific heat at constant pressure Cp, specific heat at constant volume and the molecular weight of the gas. For a certain ideal gas, Cp = 1.1 kJ/kg-K and k = 1.3.
9. Oxygen at 1 bar and 300K is compressed till the final volume is one-sixteenth of the original volume, following a polytropic process PV^1.25 = C, calculate the final pressure in psi.
Solve the problem using process of pure substances. (Isothermal Process) There are 3 kg/min of steam undergoing an isothermal process from 30 bar and 350 oC to 7 bar. (note 1bar = 100 kPaa). Find: a) ΔS (kJ/k), b) Heat transferred (kJ), c) ΔH (kJ), d) ΔU (kJ)
2. Saturated steam at 100°C is heated to 350°C at constant pressure. Use the steam tables to determine: a. The pressure in bar. b. the required heat input (J/s) if a continuous stream flowing at 100 kg/s undergoes the process.
Air, 5.37 kg, is compressed in a piston‑cylinder device from 91.3 kPa and 65.3 ∘C to 195.2 kPa in an isothermal process. Assume the air behaves as an ideal gas. Given: Cp=3.5R constant, MW=29 g/mol, and Tsurr=23.6 ∘C What is the heat interaction (in units of kJ)? What is the lost work (in units of kJ)?
Two vessels A and B of different sizes are connected by a pipe with a valve. Vessel A contains 142 L of air at 2,767.92 kPa, 93.330C. Vessel B, of unknown volume, contains air at 68.95 kPa, 4.440C. The valve is opened and, when the properties have been determined, it is found that pm = 1378.96 kPa, tm = 43.330C. What is the volume of vessel B?
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%.