About characteristics of steady flow system: There is either accumulation or diminution of energy within the system. True O False A work done by the system is outflow of energy inflow of energy O flow work of energy The law conservation of energy states that energy is neither created nor destroyed, T or F True False
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A: Ans: first one is correct. 1.0453 m^3/kg
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Q: Problem. If the force applied is perpendicular to the handle of the spanner as shown in the diagram,…
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- M: Constarm h=chang Q2. Heat cannot be zero in closed system (True/False). ( F cee Q1. Work cannot be zero in closed system (True/False) Q3. First law of thermodynamics is not based on the law of conservation of energy (True/False), Q4. The change in the total energy of the closed system is -Q5. The sum of the'energiesCarried by the mass in open system is.Mashalase Emi =Eme Q-w=AH fluichProleabie.haT ehange with Time Q6. The general form of first law of thermodynamics for open system.. Q7. Un steady state flow process is defined as. internal+ Q8. Enthalpy is defined sum of kinetic and flow energy (True False), 09. Cyclic process is defined as.wha.h.ystem start from initial state trour, L diffrent Processes and .e.k... Q10. Internal energy is considered in open system (True/False)İWhich of the following is intensive property heat: work, internal energy, specific heat, heat capacity, pressureDYNAMICS OF RIGID BODIES: WORK AND ENERGY
- Intensive property of a system is one whose value depends on the mass of the system, like volume does not depend on the mass of the system, like temperature, is dependent on the path followed and not on the state remains constant O The refrigeration cycle involves four main components a compressor, a condenser, an expansion valve, and evaporator working fluid (refrigerant), a compressor, a condenser, and evaporator a pump, a condenser, an expansion valve, and evaporatorThermodynamics Fill up the table with all your work pleaseQUESTION 1 In the process of taking a gas from state 'a' to state c along the curved path shown in the image. 85J of heat leaves the system and 55J of work is done on the system. a) determine the change in internal energy, Ea-Ec. b) when the gas is taken along the path cda, the work done by the gas is W=38J. How much heat Q is added to the gas in the process cda? c) if Pa= 2.2Pd, how much work is done by the gas in the process abc?. d) what osvQ for path abc? e) if Ea-Eb=15J, what is Q for the process bc? QUESTION 2 suppose a gas is taken clockwise around the rectangular cycle shown in the image. Starting at b, then to a, to d, to c and returning to b. Using the values given in question 1 above a) describe each leg of the process and then calculate b) the net work during the cycle and d) the net heat during the cycle. e) what percentage of intake heat has turned into usable work i.e how efficient is this "rectangular" cycle ( give as a percentage)
- Drag and Drop the correct answers in the blanks. A mass mis hanging from the end of a vertical spring that has a spring constant k. The equilibrium position of the mass, yo, is The total potential energy of the mass when it is displaced by s from the equilibrium position is given by Y. is zero + U(s) = ks + positive * negative 1 1 ks+ 21 + U(s) ks² + mgyo %3D U(s) mgyoQ1. (Reading: Çengel and Boles, Thermodynamics: An Engineering Approach, 8th Ed., Pages 307-311) The amount of energy waste by a refrigerator increases by a number of malpractices. For example; opening the refrigerator door frequently will increase energy waste as the warmer air outside replaces the cool air inside. It is also not recommended to place the hot foods into the refrigerator before cooling them to the room temperature. Imagine a typical household refrigerator with an internal temperature of 4 °C. The refrigerator has a coefficient of performance of 1.4. The internal dimensions of this refrigerator are 186 cm (height) x 84 cm (width) x 75 cm (depth). The half of the refrigerator volume is used for storing food items. The air filling the other half of the refrigator volume contains 0.004 kg moisture/kg air on average. While the moisture content of the air in the kitchen is 0.01 kg/kg air, the temperature and pressure in the kitchen are 23°C and 97 kPa, respectively. Assuming…Thermodynamics systems have been playing important roles in our life.Briefly explain one of the systems and the concepts of the system(type, properties, etc.)
- AE ll ll A:£0 docs.google.com/forms When a stationary mass of gas was compressed without friction at constant pressure its initial state of 0.8 m3 and 0.105 MPa was found to change to final state of 0.40 m3 and 0.105 MPa. There was a transfer of 85 kJ of heat from the gas during the process.How much did the internal energy of the gas change ? * 1 Add File Derive the law pv^y = constant * 1 Add File Вack Next Never submit passwords through Google Forms. This form was created inside L Iniversity of Al-A condenser is used to convert a gas into a liquid. The energy equation for a condenser is: Qcv = m(h₂ h₁) where 1 and 2 represent the state at the inlet and exit to the condenser (control volume). In addition to the steady state and steady flow assumptions, it has been assumed that: A) the change in kinetic energy is negligible OB) the change in potential energy is negligible OC) the net power input to the condenser is zero OD) all of the above, i.e. A), B) and C)An open system is often referred to as control volume, which is a properly selected region in space in which mass and energy can flow across the boundaries as figure 1.2. The boundary of a open thermodynamic system is called the control surface Across the Boundaries E = Yes F 0 = Yes w =Yes Control surface ass YES W CONTROL VOLUME energy YES Figure 1.2. A cooling/heating radiator is an example of such a system – give two more examples of such a system.