3. Water, pressure is 11.5 psig, specific volume is 15.2 ft/bm. Sketch on p-v and T-v...
Determine the phase in a system consisting of water at the following conditions and sketch P–v and T–v diagrams showing the location of each state (show the saturation dome and the relevant constant-pressure and constant-temperature lines). Also, find the value of the internal energy and the enthalpy for each state. a) P = 15 kPa and x = 0.8. b) T = 50 C and P = 20 MPa. c) T = 600 C and P = 10 MPa. d)...
5 Please sketch the following processes qualitatively on the P-v or T-v diagrams and calculate the change of internal energy of the process. Note: you need to have saturate line in your diagram and please write the numerical values of the initial state and final state on your diagram (a) T v diagram; water at the iniial state of 32 MPa and 30 C undergoesa (b) P- v diagram; water at the initial state of 2.5 bar and 0.6 quality...
Water in a piston-cylinder assembly is initially at a pressure of 10 bar and a temperature of 500 C. The water is cooled and compressed at constant pressure until it becomes a saturated vapor. The water is then cooled at a constant volume until it reaches a temperature of 150 C. a) Sketch both processes on T-v and p-v diagrams (v here is specific volume). b) Determine the total work for the overall processes. c) Determine the heat transfer for...
Water initially at 300 kPa and 250°C is contained in a constant-volume tank. The water is allowed to cool until its pressure is 150 kPa. On the P-vand T-v diagrams, sketch, with respect to the saturation lines, the process curve passing through both the initial and final states of the water. Label the end states on the process curve. Also, on both the P-vand T-v diagrams, sketch the isotherms passing through both states and show their values, in °C, on...
The pressure P and volume V of a gas are related by the equation p^5v^7=c where c is a constant. At a certain instant of time, the pressure is 100 lb/ft^2, the volume is 4ft^3 and the pressure is decelerating at a rate of 5 lb/ft^2/sec. Find the rate of change at which the volume is changing.
02) Consider a hydrostatic system represented by the thermodynamic variables volume V, pressure P and temperature T. a) Consider entropy S = S(T, V) and derive the equation TdS. Tas = Cvat +T (1) dV. V Show that this equation can be written as follows BT TdS = CydT + PDV where Cv is the thermal capacity at constant volume, B is the isobaric expansiveness and K is isothermal compressibility: b) Consider a gas described by the equation of state...
Problem 1-2: Consider blackbody radiation in thermal equilibrium at temperature T in a volume V. For an adiabatic (isentropic) expansion of this volume, show that TV1/3 is conserved. [Hint: The equation of state for a photon gas is 1/3, i.e. P/(U/V) = 1/3, where P is the pressure and U is the internal energy.
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Problem 1 (50 points) For H2O, determine the specified property at the indicated state. Locate the state on a sketch of the T-v diagram. State 1: p=20MPa, 7-520 C. It's on a superheated, saturated or compressed state? Find specific volume v, in m²/kg, and specific internal energy u, in kJ/kg. State 2: p=20MPa, v=4.76792*10-3 m®/kg. It's on a superheated, saturated or compressed state? Find quality x, temperature T, in...
4. a) Water has critical pressure and specific volume of 22.064 MPa and 0.003155 m/kg, respectively. Its critical temperature is 647 K. Assuming that you do not know the temperature, try to find this temperature using methods you learned in the class. Which one is most accurate with how much error? b) When you boil water in a kettle to enjoy hot coffee, the boiling is a constant pressure heating process, specifically at one atmosphere. Plot the thermodynamic property changes...
5. Solve and submit Problem 2.A-3 by using tables. Sketch the process on a T-v diagram against the saturation lines. 2.A-3 Arigid tank with volume V 8000 cm is filled with water with quality xi 0.05 and temperature 11-140°C. a.) What is the specific volume (m/kg) and the pressure (kPa) of the water. b.) What is the total mass of water in the tank (kg)? What is the mass of liquid (kg) and the mass of vapor (kg) in the...