In a heat engine heat is converted to work and the process need not be cyclic. True or False? a) True b) False
Q: 2. A 150W solar PV panel produces 15V and 7A when it is connected to a load under solar insolation…
A:
Q: Four operations in a manufacturing process represented as blocks are linked as shown. Each operation…
A:
Q: The coefficient of a refrigerator can be greater than 1. True or False? a) True b) False
A: A
Q: Irreversible process is one that cannot be reversed by means of small changes in theb environment.…
A: Irreversible process is that process which cannot be reversed in any manner. If we make a small…
Q: Q1/ Compare between the heat engine and the heat pump?
A:
Q: If the law of conservation of mass is applicable for a diesel combustion engine, then total mass of…
A: The Law of conservation of mass states that the mass within a closed system remains the same. The…
Q: If a heat engine is working between 68.25C and 273C. Then the efficiency of the heat engine is? A.…
A: Given Data: The temperature of the low-temperature reservoir is: TL=68.25°C The temperature of the…
Q: Four operations in a manufacturing process represented as blocks are linked as shown. Each operation…
A:
Q: Question 18 A balloon with a volume of 0.15 m³ contains air at a pressure of 115 kPa. Additional air…
A:
Q: 1. What does the area enclosed by the process represent on a P-v diagram? How about on a T-s…
A: The area enclosed by the P-v diagram describes the work done in the system.
Q: The law of Thermodynamics states that energy can not be created nor destroyed. it can only be…
A: We know Ist law of thermodynamics states that the net heat energy given to the system is equal to…
Q: 5. A machine is used to grind wheat into powder. The grinder runs for 5 minutes, and the machine's…
A:
Q: How much work will you need to compress air in an insulated container from 0.27m^3 to 0.09m^3? Use…
A:
Q: You want to heat your oven to 400°F. Given that your oven has a surface area of 1m2, about how much…
A: Given Surface area of oven(A)= 1 m2 Temperature of oven (T) = 400°F We want to calculate power…
Q: A constant pressure process with 0.605 lbm of air and a starting temperature of 98°F has a change in…
A: Given that:Mass of air: M=0.605 lbmInitial temperature, T1=98°FNow: C5=F-329C5=98-329C=36.6° Cin…
Q: Explain the zeroth law of thermodynamics?
A: The Zeroth Law of Thermodynamics states that if two bodies are each in thermal equilibrium with some…
Q: 4. A heat pump delivers heat at a rate of 7.81 kW for 15.0 h. If its coefficient of performance is…
A:
Q: q = 0 for an isothermal process. a) True b) False
A: Given: q=0 in isothermal process
Q: The clearance in the engine cylinder has no effect on the steam consumption. a.True b.False
A: This question explores the relationship between steam use and engine cylinder clearance. It makes…
Q: A PHYS 1510 student was working on a robotics project. The joints on the machine they were building…
A:
Q: A given amount of water loses heat. Does the entropy of the water increase or decrease? Does this…
A: The second law of thermodynamics states that the entropy of the universe never decreases.
Q: AQ is positive when the energy .A Enter the system .B Leave the system .C Equilibrium with its…
A:
Q: Modified Multiple Choice. Write the letter of the best option and provide an explanation on your…
A: Given statement : efficiency of heat engine = 75%
Q: At least how many Calories does a mountain climber need in order to climb from sea level to the top…
A: h = 5600 mm = 84.4 kg effiicency percentage = 14 %
Q: A certain coal-fired power plant has a rated power capacity of P = 850 MW. The output of this plant…
A: Given that :- Power capacity , P=850 MW Output , W=0.26Q11
Q: Air is contained in a piston-cylinder device. Initially the air is at a pressure of 100 kPa and…
A: Solution:-Given thatInitial pressure (P1)=100 kPaInitial temperature (T1)=27°C=27+273=300 KPressure…
Q: Gases are composed of particles that expand to completely fill their container. What causes the…
A:
Q: ased on the given pV diagram, match the answers with questions. Isotherms v the change in themal…
A: In the given graph T1,T2,T3 are three isotherms plotted against P-V graph.
Q: A workshop measures 7m x 13m and is lighted by 10 lamps which are rated at 200 W and have an…
A: We have given that the measure of workshop is 7m×13m. The number of lamps is 10. The power of lamp…
Q: How much work is done if two liters of an ideal gas expanded into a vacuum and the new volume is 5L?
A:
Q: 43) The compressor in a refrigerator performs 580 J of work to remove 160 J of heat from the…
A:
Q: What is the relation between work obtained in an reversible and irreversible process? a) Wrev >…
A: When the system undergoes a change from its initial state to the final state, the system is said to…
Q: A- The Physicist's term for the amount of disorder is entropy (True or False) B-Thermo Dynamic…
A: EntropyIt is defined as the degree of randomness or disorder in a…
Q: A heat engine has 216 J of thermal energy as input and 167 J of thermal energy at output. What is…
A: Given: Input of thermal energy,Qin=216 J Output of thermal energy, Qout=167 J
Q: Ex: Heat pump with P.C=4 and rated work at 2000w a) How much heat it can add to room per second. b)…
A:
Q: In discussing the energy of a physiological system change in the Gibbs free energy (dG) is more…
A: Change of temperature means change in kinetic energy of the system or internal energy of the system…
In a heat engine heat is converted to work and the process need not be cyclic. True or False?
a) True
b) False
Step by step
Solved in 2 steps
- Electric vehicles increase speed by using an electric motor that draws energy from a battery. When the vehicle slows, the motor runs as a generator, recharging the battery. Explain why this means that an electric vehicle can be more efficient than a gasoline-fueled vehicle.4. The first law of thermodynamics states that a. components of a system interact. b. entropy of a closed system always increases. c. closed system always shifts toward disorder or homogeneity. d. Energy is always conserved. 5. According to the second law of thermodynamics, the heat received from a high temperature reservoir by a heat engine operating in a complete cycle a. must be completely converted to work. b. equals the entropy increase. C. converted completely into internal energy. d. cannot be completely converted to work.Reversibility means the system can be return to its initial state without . * .consuming any external work from the surrounding True False
- em 5 A NATO base in northern Norway is warmed with a heat pump that uses 7.0°C ocean water as the cold reservoir, Heat extracted from the ocean water warms fluid to 80° C; this warmed fluid is used to heat the building When the system is working at full capacity, 2000 kW of heat are delivered to the building at the cost of 600 kW of electric energy. Part A What is the actual coefficient of performance of the system? COP Submit Request Answer Part B What is the theoretical maximum coefficient of performance of the system? COPX Submit Request Answar P Type here to searchwhat is true about the coal-powered steam locomotive? A- it is an example of an external combustion engine. B- it’s an example of an internal combustion engine.1 please need help, keep in mind the 7 basic units and watch the sig figs. Please write in standard form need to see all the numbers in solution thank you so much
- What statement is not true? a. In a thermal cycle, heat energy can be completely transformed into mechanical work. b. Two objects are in thermal equilibrium with a third, then they are in thermal equilibrium with each other. c. The Heat always flows from the hot object to the cold object. d. Entropy of universe is increasing.230.555A 1.666 A 1.333A None of other (2) ¿lubäi The effective water head for a 100MW station is 200 meters. The station supplies full load for 10 hours a day. If the overall efficiency of station is 86%, the mass of water used * is 23.17*10^6 m2 2.1335*10^9 m2 2.1335*10^3 m2 0.592 m2 4 من صفحة 4 إضافة وصف. >
- The coefficient of performance of a refrigerator is 5. If the temperature of the room is 301K, what is the lowest possible temperature that can obtained insides the refrigerator ? a) - 44.2°C b) 22.2°C c) - 22.2°CWhich of the following is not a characteristic of a microcanonical ensemble? a. E, V and N are constant b. The system is isolated c. Energy can be exchanged with the heat bath d. It has specific total energyWind and solar power are both considered renewable sources of energy. Although they are not as widespread as fossil fuel generators, they are slowly gaining popularity worldwide. a) How does a wind turbine generate electricity? b) How does a solar cell generate electricity? c) What common disadvantage do these two methods share? d) If you had to choose between installing equivalent capacity solar cells or wind generators at your home, which one would you install? Justify your answer IU