For the heat pump (used for heating) illustrated below, what is its coefficient of performance for heating. Kwong? The gas is monatomic. p(Pa) 2 2 V(m³)
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- 1st Law of Thermodynamics - Cyclic Process 1 In the figure, pressure PA=PB = 4.80 X 105 Pa. pressure P= P =1.6X 10° Pa. Volume VA = VD= 0.0016 m², V = 0.0064 m³ Don't use scientific notations in your answers. Calculate the work done from A to B. Include a proper sign. Keep 2 decimal places. Enter a number J Submit Calculate the heat from A to B. Include a proper sign. Keep 2 decimal places. Enter a number J Submit Pressure Calculate the change in internal energy from A to B. Include a proper sign. Keep 2 decimal places. Enter a number J Submit D m³ 3 B isotherm From B to C is an isothermal (constant temperature) process. Caculate the volume at point C. Keep 5 decimal places. Enter a number Submit C VolumeA certain heat engine operates on the PV diagram below. It contains 3.21mol of a monatomic ideal gas. p (Pa × 105) 2.0 a b 0.010 C ➤ V(m³) O 0.040 a. What temperature is the gas at state c? b. What temperature is the gas at state a? c. How much heat is added/removed from the gas over the path c-to-a? d. What is the pressure of state a? e. What is the temperature of state b? f. Find the work and heat for path a-to-b. g. Find the work and heat of path b-to-c. h. Find the efficiency of the engine. i. Would the engine be more, or less efficient if the gas were diatomic?Find the net work output per cycle for the thermodynamic cycle in the figure. P (atm). D 10 V (liters)
- A heat engine produces 2000 J of work while operating between 210 degrees Celsius and 35 degrees Celsius. a. How much heat (in J; 3 significant figures in scientific notation) is withdrawn from the hot source to produce this much of work? (Format of final answer should be 1.00x10^2) b. Calculate the efficiency of the engine (in percent). c. The root mean square speed of methane is 846 m/s. What is the temperature of the gas (in degrees Celsius)?The temperature of an ideal gas is raised from 298 K to 402 K in a process that increases the heat content of the gas by 1000 J. What is the = -R for the gas, and these are constant. Hint: It will be 2 work performed on the system by this process? Assume that c 'y helpful to evaluate AU for this process. 3 =-R and C RYou want to heat your oven to 400°F. Given that your oven has a surface area of 1m2, about how much power is being emitted by your oven? a. 477 W b. 895 W c. 1600W d. 2947 W
- 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…Answer the problem. For helium, R=2.0769 and Cp=5.1926 KJ/kg-K. Three kg of helium operates cycle where the processes are constant volume (1-2): constant pressure (2-3): and constant temperature (3-1). Given that P1=100 kPa T1=300 degree Kelvin, and v1/v3=5, determine the heat added in the cycle. a. 22.316kJ b. 14.225kJ c. 8.405kJ d. 36.708kJCan you help 2a and subpart 2b 1. A certain power plant produces useful work (i.e. electricity) at a rate of 900 MW (remember, that's 900 x 106 joules/sec). How many joules of electricity does this power plant produce in 24 hours? 2a. To generate this amount of electricity, the power plant uses 2.22 x 1014 J of heat drawn from burning coal. What is the efficiency of this power plant? 2b. How much waste heat, Qc, does this power plant eject into its cold reservoir in 24 hours
- 2.3 Study the following p-V diagram in figure 1 and answer the que P (N/m) 15 - B A. 10 C. V (m) Figure 1 10 20 30 Calculate: (a) Work done through process A to B (WAB) (b) work done through the process B to C (Wsc): (c) internal energy UAB, if 120J of energy as heat enters the syst (d) the net work done by the system.The heat of melting of ice at 1 atmosphere pressure and 0°C is 1.4363 kcal/mol. The volume of ice is 0.0196 liter and the volume of water is 0.018 liter. If I mole of ice is melted under these conditions, what will be a. The work done in cal? b. The change in internal energy in cal? c. The change in entropy in cal? Note that 1 literxatmosphere is equal to 101.325 joule.QUESTION 16 The temperature at state A is 20.0°C, that is 293 K. During the last test, you have found the temperature at state D is 73.0 K and n = 164 moles for this monatomic ideal gas. What is the change in thermal energy for process A to D, in MJ (MegaJoules)? 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. p (atm) 5 4 3 2 1 0 A D 1 2 3 4 B 5 → V (m³)