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Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
- A cylinder which is in a horizontal position contains an unknown noble gas at 42100 Pa and is sealed with a massless piston. The piston is slowly, isobarically moved inward 0.189 m, while 15900 J of heat is removed from the gas. If the piston has a radius of 0.327 m, calculate the change in internal energy AU of the system. AU = Jarrow_forwardFor a certain gas, R=0.277 kJ/kg-K and k=1.384. If 32.55 kJ are transferred to this gas at constant pressure in Question 5, what are the resulting temperature and volume? *Question 5: For a certain gas, R=0.277 kJ/kg-K and k=1.384. What mass of this gas would occupy a volume of 0.475 m3 at 518.14 kPa and 27.8°C?arrow_forwardanswer please varrow_forward
- A system which has neither mass-5 nor energy transfer across the * boundary is called a Closed System Isolated System Open System None System Oarrow_forwardA system undergoes process a process in which the heat transfer to the system is 30 KJ and the work done by the system is 35000 Nm. The change in internal energy of the system is (а) +5 КJ -10 KJ (b) —5 -5 KJ (c) (d) + 10 KJarrow_forwardThe volume and temperature of a gas at the beginning of expansion are 0.0056m3 and 183°C, respectively; at the end of expansion the values are 0.0238 m3 and 22°C, respectively. Assuming expansion follows the law PV^n=C, find the value of n.arrow_forward
- When U=f(T,v) for an ideal gas if B=1.4 E-5 /K, and if partial derivative of internal energy with respect to volume at constant temperature 6.16 J/m3 with V=5 m3 then the pressure * :is 1.161 E 5 Pa O 6.73 E 6 Pa 7.221 E 4 Pa 3.14 E 5 Pa Oarrow_forwardA metallic container of fixed volume of 2.5 × 10−3 m3 immersed in a large tank of temperature 27 °C contains two compartments separated by a freely movable wall. Initially, the wall is kept in place by a stopper so that there are 0.02 mol of the nitrogen gas on one side and 0.03 mol of the oxygen gas on the other side, each occupying half the volume. When the stopper is removed, the wall moves and comes to a final position. The movement of the wall is controlled so that the wall moves in infinitesimal quasi-static steps. (a) Find the final volumes of the two sides assuming the ideal gas behavior for the two gases. (b) How much work does each gas do on the other? (c) What is the change in the internal energy of each gas? (d) Find the amount of heat that enters or leaves each gas.arrow_forwardStarting from the First Law of Thermodynamics ( AU = Q – W - W | ), derive the general energy equation. ( +z, + h, 2g V P2+a2 +z, +h, + h, 2garrow_forward
- Given: Otto Cycle with the following data: compression ratio = 9 intake air is at 100 KPa and 20°C maximum cylinder volume = 500 cm³ Temperature at the end of adiabatic compression = 800 K Cp =1.01 kJ/kgK, Cv=0.718 kJ/kg, k = 1.4, R = 287.1 J/kgKarrow_forwardIn an industrial process 0.4 kg of oxygen is compressed according to PVn =C, where n = 1, from 1.01 bar and 22C to 5.5 bar. Determine the work done and the heat transfer during the process. show cancellation of units and formula usedarrow_forwardUsing 1st and 2nd law of thermodynamics for irreversible expansion of Krypton: Krypton (ideal monatomic gas) is confined in one-fourth of a 48-litre container. The other part of the container is evacuated. When the partition is removed, the gas expands and fills the whole container, while the system loses 400J of heat to the environment at 290K. It is found that in the final state, the Krypton is at p2 = 5.5bar, T2 = 400K. Is this process possible or not? (?k?????? = 83.8 kg/kmol)arrow_forward
- Principles of Heat Transfer (Activate Learning wi...Mechanical EngineeringISBN:9781305387102Author:Kreith, Frank; Manglik, Raj M.Publisher:Cengage Learning