magnitude of work
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- 1mot alr is heated reversibly at constant pressure from Isi to 300 c, and then cooled reversibly atconstant volume back to the initral temperature, the initial prevure is L03bar. Calculate the net heat flow and the overall change of entropy Sketch the en T-s diagram. Ans. L lo1.51g , 0.2461glk] processDiscuss the process of selection of refrigerants in R&AC system based on physical and thermalproperties and environmental aspects. Show the relation between gas properties P-V-T and Heatand work.Derive the MEPDiesel in terms of e, P 1, rk, rc, & k
- Identify if the property of the following steam: Temp Specific Entropy Quality C kJ/kg-K % 202 5.798If 6 liters of air at a pressure of 100 kPaa and 25 0 C are compressed reversiblyaccording to PV 2 = C, until the volume becomes 2 liters. Please answer the following a. The thermodynamic process the problem representsb. the pressure, temperature, and volume after the processc. change in internal energy, change in enthalpy and change in entropyd. work nonflow and heat transferredFind the slop in K/kPa of a Marcet boiler from observed experimental readings (during heating mode) of gauge pressures are 2 bar and 4.5 bar and temperature of 120oCand 158oC .
- المحاضرة الثالثة.pdf > E M 69% i 12:58 p.m. Eample (2.5): A piston-cylinder device containes waterat 325kPa with quality 0.4. Find the temperature, spec. volume, int. energy, and enthalpy of water. 1. ALI Dr. ALI JAB Solution:how did you convert the atm pressure mm Hg?A rigid closed tank contains refrigerant 134a wnich is initally a two- phase liquid - vapor mxiure with a temperaflure of D'c and a quality of Ce0%. An electrical resistor nistalled inside the Fank transfers until the tank contains only saturated vapor. if the tank is well - insulated and the mass of the Cefrigerant is 1.5 kg, determıne the time it takes for the process to be completed in seconds using 5 signifigant Agures
- 2acio original 2 lg of gas occupying ot m', had an temperatuve of 15 ċ.It was then heated at constant Volume until its temperature became 135c- Howd much heat was transferred to the gas and what was its final pressure ? Take, C=0 72 lg lieg K and R=0-29 vg Ikg KWhat is the piston work for this process in kJ? (КРа) 2 200 5 V (m³) 3 Select one: O 200 O 400 O - 200 -400Pls solve accurate and fast A 1-kg steam-water mixture at 1.0 MPa is contained in an inflexible tank. Heat is added until the pressure rises to 3.5 MPa and the temperature to 400: Determine the heat added