Happens when an interaction of the thermometer and matter causes no further change in the system. a. thermal force b. thermal equilibrium c. thermal power d. thermal exchange 2. The triple point of water is a. 1000 Pa b. 1
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- QI/ A gas in a piston-cylinder assembly undergoes an expansion process for which the relationship between pressure and volume is given by pVn=constant. The initial pressure is 3 bar, the initial volume is 0.1 m3, and the final volume is 0.2 m3. Determine Solution and discussion: 1. 1. The expansion is a. Fast b. graduated c. fully damped d. adiabatic. 2. 2. The energy means: a. Em – Eout = 0 b. H, = H2 c. Q12 = AU12 d. AĖ12 # 0Water contained in a piston-cylinder assembly undergoes two processes in series (point 1 to point 2 and point 2 to point 3): point 1: T1 = 100°C and P1 = 5bar point 2: 71= 151.9°C and P2 = 5bar and v2 = 0.300 .300 m³ point 3: 73= 200°C and v3 = .300" kg Use the thermodynamic tables A.2, A.3, and A.4 to answer the following questions: For questions 1, 3, and 5 choose from: subcooled water, saturated water, saturated liquid, saturated vapor, superheated vapor 1) What is the thermodynamic state of water at point 1: 2- What is the specific volume of water at point 1: 3) What is the thermodynamic state of water at point 2: 4) What is the quality of water (x) at point 2: 3) What is the thermodynamic state of water at point 3: 4) What is the pressure of water at point 3: (bar) On paper draw points 1, 2, and 3 on the following P-v and T-v diagrams and show the two processes. Add number values, units, and constant pressure or temperature lines if needed. Specify which table you used to find…4. Methylamine, stored in a 2000-gallon tank is to be transferred in drums. Each drum is to be filled at a pressure of 20 psig and 90°F. The stored methylamine is initially at 50 psig and 90°F. (1 drum = 55 gal; MW of methylamine is 31) a. Total mass inside the tank; 90.8738 Ibm b. Mass inside each drum; 1.3402 Ibm c. Number of drums that can be filled; 68 drums
- For a given Cp as a function of T: 41.87 t + 100 Cp = 2.093 + Where Cp is in J deg C and t is in deg C The system's volume increases from 2,000 to 2,400 cubic centimeter due to it being heated at 1 atmosphere while the temperature raises from standard to 100 deg C. Determine: A.) the heat transferred (J) B.) the change in internal energy of the system (J)A system consisting of a large boat and all its contents. The air inside the boat and outside the boat has the same temperature. The boat is moving north at a constant speed of 20 knots. The boat's engine runs on gasoline, exhaust gases (CO2 and water) are released into the atmosphere. There isn't any other matter going in and out of the system. Are the following statements true or false? Explain why?a. The system is in a steady state, because its velocity is constant. However, the system is not in equilibrium because it is moving, that is, the forces acting on the system are not in equilibrium.b. The system is not in a steady state because the amount of gasoline in the system changes. However, the system is in equilibrium because the temperature inside and outside the system is equal, there is no driving force for heat transferc. The system is neither balanced nor stabled. The system is adiabatic because there is no incentive for heat transfere. The system is isolated because there is…2.33 Carbon monoxide gas (CO) contained within a piston- Process 1-2: Expansion from p, 5 bar, V = 0.2 m' to Process 2-3: Constant-volume heating from state 2 to state Process 3-1: Constant-pressure compression to the initial V, = 1 m'. during which the pressure-volume relationship is cylinder assembly undergoes three processes in series to pV = constant. 3, where p3 5 bar. %3D state. Sketch the processes in series on p-V coordinates and msi uate the work for each process, in kJ.
- 1Q. Thermodynamics Complete Solution2. a. Take B °C, then convert it to Fahrenheit and Kelvin. b. Find the amount of heat needed to change the temperature of B g of ice from -D °C to B °C. The specific heat of water is 4186 J/kg °C, Latent heat of fusion is 3.33 x105 J/kg, laten heat of vaporization 2.25 x 106 J/ kg. c. A patient of mass B kg is spiking a fever of 105 Fahrenheit. The patient is immersed in ice bath 0°C ice to reduce the fever immediately back down to 98.6 Fahrenheit. How much ice must melt (bath stays at 0°C water) for this temperature reduction to be achieved? Latent heat of fusion is 3.33 x105 J/kg. and Specific heat of body is 3500 J/kg °C. d. A Styrofoam ice box has a total area of C/100 m² and walls with an average thickness of 2.50 cm. The box contains beverages at 0°C. The inside of the box is kept cold by melting ice. How much ice melts in one day if the ice box is kept in the trunk of a car at 35.0°C? Thermal conductivity of ice 0.010 J/s m ºC, Latent heat of fusion is 3.33 x105 J / kg. B:27.0…B: Choose the correct answer: 1. (A collection of matter within prescribed and identifiable boundaries) this definition refer to: B. Closed system thermodynamic System A. Open System 2. 0.05 kg of Steam contained in a rigid vessel of volume 0.0076 m' with a pressure 15 bar. The temperature of steam will be: A. 258 °C B. 250 °C C. 245 °C 3. The energy associated with the motions of the microscopic particles comprising a macroscopic system) this definition refer to: A. Internal Energy B. Enthalpy C. Pressure 4. When a liquid is heated at any one constant pressure there is one fixed temperature at which bubbles of vapour form in the liquid, this phenomenon is known as: A. Saturation B. Boiling C. Heating 5. its defined as a state at which a change of phase of phase may occur without change of pressure or temperature A. Critical point B. Latent heat of vaporization C. Saturation 6. The heat required to change a saturated liquid to a dry saturated vapour is called: A. Latent heat B.…
- A:EV 22.pdf QI/ Four kilograms of water are placed in an enclosed volume of 1 m³. Heat is added until the temperature is 150 ° C. Find the (a) pressure, (b) mass of the vapor, and (c) volume of the vapor. Q2/ A 1.343 × 10 ´ J fan is used in a large room to provide for air circulation. Assuming a well insulated, sealed room, determine the internal energy increase after 1 hour of operation.1. The condition of a system as described by its properties... .... a. System b. Process c. Property d. State e. Boundary 2. The 1" law of thermodynamics is the law of ... a. Conservation of mass b. Conservation of heat c. Conservation of energy d. Conservation of momentum e. none of the above ..... 3. In an isovolumetric process.. a. There is no change in pressure b. There is no change in temperature c. There is no change in internal energy d. There is no change in volume e. There is no chemical reaction 4. Everything external to the system . a. Boundary b. Surroundings c. State d. Process e. Property 5. Which of the following is an extensive property? a. Temperature b. Density c. Specific volume d. Pressure e. Volume 6. The unit of energy in S.I. units is .. a. watt b. joule c. joule/s d. joule/m e. joule m.kilogramHW4.pdf we/Desktop/FALL%202022/ENSC%202213%20-%20THERMO%20D/HWS/4/HW4.pdf + a) Temperature at the initial state in °C. 4) A liquid-vapor water mixture of 50% quality and equilibrium pressure of 1 bar (initial state) is heated to 280 °C (final state) in a rigid closed container. Calculate the following: b) Specific volume at the initial state in m³/kg. c) Specific internal energy at the initial state in kJ/kg. A d) Final pressure in bar. Don't interpolate. Find closest value from tables. f) Work done by the system in kJ/kg. (T) e) Specific internal energy at the final state (as determined in part (d)) in kJ/kg. g) Heat transferred to the system in kJ/kg. E