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For Questions 12 through 17, give a specific example of a process that has the energy changes and transfers described. (For example, if the question states “
∆Eth > 0, W ≠ 0, Q ≠ 0
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- Consider the process shown below. During steps AB and BC, 3600 J and 2400 J of heat, respectively, are added to the system. (a) Find the work done in each of the processes AB, BC, AD, and DC. (b) Find the internal energy change in processes AB and BC. (c) Find the internal energy difference between states C and A (d) Find the total heat added in the ADC process. (e) From the information given, can you find the heat added in process AD? Why or why not?arrow_forwardAn electrical power station uses 1.58 x 10-4 J of heat input with an efficiency of 35.7%. (a) How much work is done? (b) How much waste heat is produced by the station? (c) What is the ratio of waste heat to work output? waste heat work outputarrow_forwardA series of thermodynamic processes is shown in the pV-Diagram (see figure on the side). In process ab, 150J of heat are added to the system, and in process bd, 600 J of heat are added. Find a) internal energy change in process ab; b) the internal energy change in process abd; and c) the total heat added in process acd.arrow_forward
- A heat engine takes in 2500J and does 1500J of work. a) How much energy is expelled as waste? b) What is the efficiency of the engine?arrow_forwardA heat engine extracts 59 kJkJ from the hot reservoir and exhausts 32 kJkJ into the cold reservoir. What is the work done? What is the efficiency?arrow_forwardplease answer the following As a gasoline engine is running, an amount of gasoline containing 12,000 J of chemical potential energy is burned in 1 s. During that second, the engine does 4,000 J of work. What is the engine's efficiency (in percent)? The burning gasoline has a temperature of about 4,300°F (2,600 K). The waste heat from the engine flows into air at about 88°F (304 K). What is the Carnot efficiency (in percent) of a heat engine operating between these two temperatures?arrow_forward
- mmh One ounce of a well-known breakfast cereal contains 110 Calories (1 food Calorie = 4186 J). If 2.0% of this energy could be converted by a weight lifter's body into work done in lifting a barbell, *53. what is the heaviest barbell that could be lifted a distance of 2.1 m?arrow_forwardAnswer isnt -15arrow_forwardThe heat supplied is 500 J. The heat loss to the environment is 160 J. Step 2 Calculation: Write the expression for the work output from the heat engine. W=Q1-Q2 Here, W is the useful workout, Q1 is the supplied heat, and Q2 is the heat loss. Substitute, all known values in the above expression. W=400 J-160 J=240 J Thus, the useful work is 240 J. What is the efficiency of the heat engine in the preceding problem at top? a) 32% b) 54% c) 68%. d) 75% e) 175%arrow_forward
- 27 J of heat energy is transferred into an ideal gas and 46 J of work is done on the gas. What is the change in thermal energy, in Joules? Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.arrow_forwardProblem 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…arrow_forwardA closed system undergoes a process during which 600 kJ of heat is added to the system and the stored energy increases by 1800 kJ. Calculate the work done.arrow_forward
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning