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Thermodynamics: An Engineering Approach
- 1) Given a vessel with V = 0.4 m3 filled with m = 2 of H2O at P = 600 kPa, find • the volume and mass of liquid, and • the volume and mass of vapor.arrow_forward3.23 3.24 d 3.25. Gas at constant T and P is contained in a supply line connected through a valve to closed tank containing the same gas at a lower pressure. The valve is opened to allow flow of gas into the tank, and then is shut again. (a) Develop a general equation relating n1 and n2, the moles (or mass) of gas in the tank at the beginning and end of the process, to the properties U1 and U2, the internal energy of the gas in the tank at the beginning and end of the process, and H', the enthalpy of the gas in the supply line, and to Q, the heat transferred to the material in the tank during the process. (b) Reduce the general equation to its simplest form for the special case of an ideal gas with constant heat capacities. (c) Further reduce the equation of (b) for the case of n1 = 0. (d) Further reduce the equation of (c) for the case in which, in addition, Q = 0. (e) Treating nitrogen as an ideal gas for which Cp equation to the case in which a steady supply of nitrogen at 25°C and…arrow_forwardA mass of 12 kg of Oxygen occupying 3 m3 is heated from 25°C at a constant volume. Take gas constant is 0.297 kJ/kgK, then its initial pressure would be approximately 0.78 bar. Select one: O True O Falsearrow_forward
- Show that for perfect gas, Cp,m - Cv,m =Rarrow_forwardA chamber is divided equally into two parts by a membrane. One side contains Hydrogen, H2, at a pressure of 200 kPa and temperature of 300 K, and the other side is evacuated (a perfect vacuum). The total chamber volume is 0.005 m3. At time t = 0, the membrane ruptures and the hydrogen expands freely into the evacuated side. The chamber can be considered adiabatic (i.e. perfectly insulated). Find the final values of the temperature and pressure.arrow_forwardA mass of 15 kg of Oxygen occupying 3 m³ is heated from 25°C at a constant volume. Take gas constant is 297 J/kgK, then its initial pressure would be approximately 1.33 bar. Select one: O True O Falsearrow_forward
- Find the reaction at C so that the reactions at A and B are equal. Also, Find X and find the reaction at B. 120 N 600 N 30 N/m В 10 m 1m 2 m 12 m O 200 N, 400N, 2.33m 132.32N, 221.19N, 5m 106.67N, 40N, 5.35m O 220.69N,122.61N, 9.54marrow_forward3.1 If y = and w is increasing by 2%, s is decreasing by 3% and d is increasing by 1%. calculate the maximum percentage eror in y. %3D 3.2 The volume of a certain figure is given by V = In(x sin z + y z). Evaluate the change in V at (x;y;z) = 10;5; given that x and z decrease by 0,03cm and 0,1 rads, respectively, and y increases by 0,01cm.arrow_forwardAnswer this ASAP,THX Work according to the instructions Determine the Derivative Direction of f when f -xyz with P (3,3,0), and a = 3j - 2karrow_forward
- The equation dU = T dS – P dV is applicable to infinitesimal changes occurring in A.A closed system with changes in composition B.An open system with changes in composition C.An open system of constant composition D.A closed system of constant composition E.None of thesearrow_forwardQ4 Show that for a gas obeying van der Walls equation of state, 2a Cp – Cy = R + vTarrow_forwardThe figure shows a pV diagram for 1.8 g of helium gas (He) that undergoes the process from the state 1 to the state 2 to the state 3. Find the value of V3. P2 2.0 atm 0 17 L 69 L 34 L 8.6 L 657°C- 37°C 1 Isothermal 3 V(L)arrow_forward
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