Q5. Two identical bodies of constant heat capacity are initially at temperatures T1 and T2 . They areused as hot and low temperature reservoirs for a Carnot engine. No other source of heat is available.Show that the final common temperature T; after all possible work has been extracted from the systemis1Tp = [T,T,]2High-temperature reservoirAt intermediate states the temperatures of the hot and coldT1reservoir can be taken as t, and t, respectively. For an infinitesimalprocessIw|Q1 = Cdt,Q2 = -Cdt2Q2Efficiency of a Carnot engine is given asQ1T2Low-temperature reservoirn = 1 -Q2

For carnot cycle change in entropy of system is zero as it is reversible cyclic process.

Answered: Q5. Two identical bodies of constant…

Similar questions

8. An ideal monatomic gas expands isothermally from A to B, as the graph shows. What can be said about this process? (a) The gas does no work. (b) No heat enters or leaves the gas. (c) The first law of thermo- dynamics does not apply to an isothermal process. (d) The ideal gas law is not valid during an isothermal process. (e) There is no change in the internal energy of the gas. Isotherm B Volume Pressure
A hot reservoir at 1700C transfers 400 kJ of heat to a cold resevoir at 500 C. What is the total change in entropy? a. 1,210 J/K b. 335 J/K c. 5,560 J/K d. 130 J/K e. 0.000 J/K
8.4 A cylinder is equipped with a tight - fitting but easily movable piston. The cylinder contains 2.0x10^-4 m^3 of gas with normal air pressure. With a bunsen burner, the cylinder is heated until ga - then doubled its volume. a) Calculate how much work the gas does during the expansion b) How much does the internal energy change during the expansion of the gas have 5 degrees of freedom? c) How much heat has been added to the gas during the expansion?\
A cylindrical pump contains a fixed number of gas molecules. The piston is free to move, but no gas can enter or leave the pump. The pump is also thermally isolated from the surroundings. Neglect friction between the piston and the cylinder walls. The piston is quickly pressed inward. a) Is the work done on the gas positive, negative or Explain your reasoning. Because it is quick there is little to no energy exchanged meening no work was done. A K zero? b) Is the heat transfer to the gas positive, negative or zero? Explain your reasoning. There is also I heat transfer. c) Did the internal energy of the gas increase, decrease or remain the same? Explain your reasoning. d) Does the temperature of the gas increase, decrease or remain the same? Explain your reasoning. e) Does the pressure of the gas increase, decrease or remain the same? Explain your reasoning. g) What type of process is this? f) Sketch a PV diagram representing this process. (Note: I want to know which axis is P and which…
Calculate the net work on the gas during cycle X. Justify your answer.
Consider a heat engine transferring energy from a warm region (Tw) to a cool region (Tc) . Which combination of temperatures will result in the highest efficiency? a. Tw = 500 K, Tc = 400 K b. Tw = 500 K, Tc = 300 K c. Tw = 500 K, Tc = 450 K d. Tw = 300 K, Tc = 300 K
1. When the pins fall away, the gas is compressed by a constant external pressure to 5 atm. Calculate AS and find the maximum work that could have been extracted from the same change in state had the process been carried out reversibly. The system is in contact with the surroundings at 250K. TE250k O.5 moler ielealget at latm -Perti Satm
#2. Suppose 2.35 moles of an ideal gas expands to twice its volume isothermally at 298 K. A) How much work is done by the gas? B) Show the work done on a pressure-volume (P-V) graph C) What is the change in entropy of the gas?
part 1 of 2 A Carnot engine has a power output of 72 kW. The engine operates between two reservoirs at 20°C and 286°C. How much thermal energy is absorbed each hour? Answer in units of J. part 2 of 2 How much thermal energy is lost per hour? Answer in units of J. Y Yo i
One of the consequences of the 2nd Law of Thermodynamics is: A. You can get the same amount of energy out of a process as you put in B. Two bodies are in thermal equilibrium when they have the same temperature C. You can get more energy out of a process than you put in D. The starting and finishing temperature of a cycle must be the same E. You can not get as much energy out of a process as you put in
A Carnot heat engine operates with an efficiency η=0.5 between a hot reservoir at temperature T1 and a cold reservoir at temperature T2=300 K. Calculate the temperature T1 of the hot reservoir. Select one: a.T1=150.0 b.T1=300.0 c.T1=900.0 d.T1=600.0
H4

SEE MORE QUESTIONS