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- Q1 / (0.2562m3) of saturated vapor at (2MPa). The ratio of dryness (0.9) expands the polytropia relationship (= Pv1.25) to (7bar). Calculate: According to V1-1 ms, 2- 02, Q 12, W 12, 2012 -3 X2 4- Find the final state of steamA 10-ft3 vessel of hydrogen at a pressure of 305 psia is vigorously stirred by paddles until the pressure becomes 400 psia. Determine ΔU, ΔH, and paddle work (Wp). Assume the vessel is fully insulatedA prototype boiler that contains 5 kg of saturated steam at a pressure of 482.5kPa. Determine the amount ofheat which must be rejected in order to reduce the quality to 60%. (a) What will be the pressure andtemperature of the steam at this new state? Compute for the (b) heat, (c) internal energy, (d) entropy, and (e)enthalpy at this new state. Note: Consider a constant pressure process.
- A prototype boiler that contains 10 kg of saturated steam at a pressure of 482.5kPa. (a) Determine the amount of heat which must be rejected in order to reduce the quality to 70%. (b) What will be the pressure and temperature of the steam at this new state? Compute for the (c) heat, (d) internal energy, (e) entropy, and (f) enthalpy at this new state.One cubic foot of argon gas at 10° C and 1 atm is compressedisentropically to a pressure of 600 kPa. ( a ) Whatwill be its new pressure and temperature? ( b ) If it is allowedto cool at this new volume back to 10 ° C, what will be thefinal pressure?What is the difference between specific internal energy and specific enthalpy in first law of Thermodyanamics and when should i use which? From what i understand so far for constant pressure process, we use q-w=h2-h1 and constant volume process, we use q-w = u2-u1. But this isnt the answer i am looking for.
- I want to know how this four pressures and enthalpies are selcectedA 5L rigid container contains Acetylene initially at gage pressure and temperature of 100 KPa and 300 K, respectively. Because of the leaks in the fittings of the vessel, the gage pressure dropped to 80KPaand the temperature decrease to 200K, determine the mass of the Acetylene that leaked out.p91#17. during an isentopic process of 2 kgm/sec of oxygen, the temperature increases from 20degree celsius to 120 degree celsius. calculate change in enthalpy,work,Q, change in entropy, integral of pdv and -integral of vdp.
- Please indicate the given. Determine the optimal intermediate pressures and work needed per kilogram of gas for a three-stage compressor that must compress air between 120 kN/m2 and 288 K to 3800 kN/m2. It's likely that the compression is adiabatic, and that interstage cooling is being used to cool the air back to its initial temperature.In an ideal nozzle, the enthalpy change of the gas is 69.4 kJ/kg. Assuming the initial velocity is negligible what is the final velocity (Enter your answer to the nearest whole number of m/s)?A 6-m³ tank contains helium at 400 K and is evacuated from atmospheric pressure to a pressure of 740 mm Hg vacuum. Determine (a) mass of helium remaining in the tank, (b) mass of helium pumped out, (e) the temperature of the remaining helium falls to 10°C. What is the pressure in kPa?