! Required information A reversible engine with an efficiency of 38.3% has TC = 310.0 K. How much heat is exhausted for every 0.100 kJ of work done? Check my work
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- The temperature of the cold reservoir of the engine is 300 K. It has an efficiency of 0.30 and absorbs 500 J of heat per cycle. (a) How much work does it perform per cycle? (b) How much heat does it discharge cycle?An engine with an efficiency of 0.30 absorbs 500 J of heat per cycle. (a) How much work does it perform per cycle? (b) How much heat does it discharge per cycle?It is found that an engine discharges 100.0 J while absorbing 125.0 J each cycle of operation. (a) What is the efficiency of the engine? (b) How much work does it perform per cycle?
- An ideal gas expands isothermally along AB and does 700 J of work (see below). (a) How much heat does the gas exchange along AB? (b) The gas then expands adiabatically along BC and does 400 J of work. When the gas returns to A along CA, it exhausts 100 J of heat to its surroundings. How much work is done on the gas along this path?A heat engine operates between two temperatures such that the working substance of the engine absorbs 5000 J of heat from the high-temperature bath and discharges 3000 J to the low-temperature bath. The rest of the energy is converted into mechanical energy of the turbine. Find (a) the amount of work produced by the engine and (b) the efficiency of the engine.A cylinder contains 500 g of helium at 120 atm and 20 . The valve is leaky, and all the gas slowly escapes isothermally into the atmosphere. Use the results of the preceding problem to determine the resulting change in entropy of the universe.
- An ideal gas at temperature T is stored in the left half of an insulating container of volume V using a partition of negligible volume (see below). What is the entropy change per mole of the gas in each of the following cases? (a) The partition is suddenly removed and the gas quickly fills the entire container. (b) A tiny hole is punctured in the partition and after a long period, the gas reaches an equilibrium state such that there is no net flow through the hole. (c) The partition is moved very slowly and adiabatically all the way to the light wall so that the gas finally fills the entire container.How could you design a Carnot engine with 100% efficiency?Use a PV diagram such as the one in Figure 22.2 (page 653) to figure out how you could modify an engine to increase the work done.
- Problem 11: A heat engine receives heat in the amount of Q, = 750 kJ from a high temperature thermal reservoir and delivers = 270 kJ of work per cycle. W. net Part (a) Write an expression for the efficiency of the engine. Expression : Select from the variables below to write your expression. Note that all variables may not be required. a, ß, 0, a, d, g, h, j, k, m, P, Qħ, S, t, W, net Part (b) What is this efficiency? Numeric : A numeric value is expected and not an expression. Part (c) Write an expression for the amount of energy required to be rejected into the low temperature reservoir. Expression : ttps://usu34ny.theexpertta.com/Common/ViewAssignmentDetails.aspx 26/2020 The Expert TA | Human-like Grading, Automated! Select from the variables below to write your expression. Note that all variables may not be required. a, ß, 0, a, d, g, h, j, k, m, P, Qh, S, t, Wnet Part (d) How much energy, in kilojoules, is rejected into the low temperature resevoir? Numeric : A numeric value is…Can you help with subpart d it is not correct 5. A Carnot engine works between two heat reservoirs at temperatures Thot= 301.0 K and Tcold= 220.0 K. a. What is its efficiency? 0.27 % b. If it absorbs 200.0 J from the hot reservoir during each cycle, how much work does it do per cycle? 54 J c. How much heat does it reject during each cycle? 146 J d. What is the coefficient of performace, COP, of this engine when it works as a refrigerator between the same two reservoirs? 3.72Can you help with subpart d 5. A Carnot engine works between two heat reservoirs at temperatures Thot= 301.0 K and Tcold= 220.0 K. a. What is its efficiency? b. If it absorbs 200.0 J from the hot reservoir during each cycle, how much work does it do per cycle? c. How much heat does it reject during each cycle? d. What is the coefficient of performace, COP, of this engine when it works as a refrigerator between the same two reservoirs?
