FUNDAMENTALS OF THERMODYNAMICS
10th Edition
ISBN: 9781119634928
Author: Borgnakke
Publisher: WILEY
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1 kg of steam expands isentropically from 2.5 MPa & 300 Degrees Celsius to .95 MPa. Find the final quality and Wn, Ws.
A piston/cylinder receives (control mass system) R-134a at 300 kPa and compresses it in a process where
the entropy does not change. to a state of 1000 kPa, 60° C. Find the initial temperature, AND THE
CHANGE IN INTERNAL ENERGY.
A piston/cylinder has a water volume separated in VA = 0.3 m³ and VB = 0.4 m by a stiff membrane.
The initial state in A is 1000 kPa, x = 0.8 and in B it is 1500 kPa and 250°C. Now the membrane
ruptures and the water comes to a uniform state at 200°C. What is the final pressure? Find the work and
the heat transfer in the process.
Po
mp
cb
A:H2O
B:H20
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- steam at 11 MPa has a specific volume of 0.0196 m^3/kg , find the temperature, the enthalpy, and the internal energy.arrow_forwardCorrect solution will be liked.arrow_forwardSteam undergoes an isentalpic (h=C) process from 1.5 mpa, 350°c to 10 mpa. Find the final temperature using the mollier charterarrow_forward
- Solve it correctly please. I will rate accordinglyarrow_forwardAir at 1000 Co, 1.0 MPa expands in a polytropic process with n = 1.3 to a pressure of 250 kPa. Find 1- the final temperature 2- the specific work outputarrow_forwardHelium at 100 kPa, 500 K is in a piston/cylinder setup and is compressed to a final pressure of 800 kPa. Consider helium as an ideal gas with constant specific heat capacities. Find the final temperature and the specific work if the above process is (i) reversible adiabatic (ii) reversible isothermalarrow_forward
- An automobile tire is inflated to 105 kPa at 30 deg. C. After being driven the temperature rises to 55 deg. C. Find the final pressure under isochoric process.arrow_forwardFour kilograms per second of Methane is compressed isentropically from 104.3 kPa, 140 degree Fahrenheit to 440.6 degree Fahrenheit. Assuming that the process is for ideal gas, find: Final Pressure, torr Change in entropy Work, HParrow_forwardPlease be very detailedarrow_forward
- In an engine, the air in a piston-cylinder arrangement has a compression ratio of 0.1. It starts from 100kPa and 20degC. Find the temperature at state 2. You can assume an adiabatic process and the ideal gas law applies.arrow_forwardOne way to determine the quality of saturated steam is to throttle the steam to a low enough pressure that it exists as a superheated vapor. Saturated steam at 500 kPa is throttled to 0.1 MPa, 100 oC. Determine the quality of the steam at 400 kPa side. (Starts the calculation from mass and energy conservation)arrow_forwardFind the quanity of heat required to produce 79% dry steam at 8000 kpa from feedwater at 50 degrees celcius ?.arrow_forward
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