FUNDAMENTALS OF THERMODYNAMICS
10th Edition
ISBN: 9781119634928
Author: Borgnakke
Publisher: WILEY
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Q2: One mole of air at P: and temperature Ti is compressed at constant volume till its pressure doubled. Then it is allowed to expand reversibly and isothermally to the original pressure and finally restored to the originol temperature by cooling at constant pressure. Sketch the processes on a P-V and calculate the net work done by the
Q3/ A cylinder fitted with a movable piston contains water at 3 MPa, 50% quality, at which
point the volume is 20 L. The water now expands to 1.2 MPa as a result of receiving 600 kJ
of heat from a large source at 300°C. It is claimed that the water does 124 kJ of work during
this process. Is this possible? i
A quantity of ideal gas with an initial condition of 0.1 m3 and 735 kPa expands isothermally to 118 kPa. Find the heat transfer during the process.
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- 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.arrow_forwardL An iniially empty bottle is illed with water from a line at 0.8 MPa and 350-C. Assume that there is no heat transfer and that the bottle is closed when the pressure reaches the line pressure, If the final mass is 0.7 kg, find the final temperature and the volume of the botle.arrow_forward4.7 The refrigerant R-22 is contained in a piston/cylinder as shown in Fig. P4.7, where the volume is 11 L when the piston hits the stops. The initial state is -30°C, 150 kPa with a volume of 10 L. This system is brought indoors and warms up to 15°C. a. Is the piston at the stops in the final state? b. Find the work done by the R-22 during this process.arrow_forward
- .arrow_forwardWater at 2.5 MPa and 200 degree celcius is heated at constant temperature up to 80% quality. Find the quantity of heat received by the water in kJ/kg and the work in nonflow process in Kj/Kg.arrow_forward1. Kittel Ch3-1. Free energy of a two state system. (a) Find an expression for the free energy as a function of 7 of a system with two states, one at energy 0 and one at energy E. (b) From the free energy, find expressions for the energy and entropy of the system. The entropy is plotted in Figure 3.11.arrow_forward
- Ten kilograms of water in a piston/cylinder arrangement exist as saturated liquid/vapor at 100 kPa, with a quality of 50%. It is now heated so that the volume triples. The mass of the piston is such that a cylinder pressure of 200 kPa will float it. A. Find the final temperature and volume of the waterB. Find the work given out by the waterarrow_forwardFour kilograms of steams is initially at 1 MPa and x=40% inside the piston cylinder. There is a 30C superheat introduced in steam isopiestically.Find the change of entropy of the steam.arrow_forwardPlease don't provide handwritten solution ....arrow_forward
- A piston cylinder containing air receives 3.892kw heat at constant temperature, and an initial pressure of 200kPa. The initial volume is 0.01 m3 .Find the final volume.arrow_forwardA piston cylinder has 6 kg of air at 300 K and 150 kPa. It is now heated up in a two step process. First constant volume to 1000 K (state 2) then followed by a constant pressure process to 1500 K, state 3. Find the final volume and final pressure. (R of air = 0.287 KJ/kg K)arrow_forwardHi, pls help me solve this problem. Thank you so much.arrow_forward
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