O ezto.mheducation.com/hm.tpx Questlons 8-10 (of 10) Save & Exit Submit Use the
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O ezto.mheducation.com/hm.tpx Questlons 8-10 (of 10) Save & Exit Submit Use the sub navigation below to navigate within this serles of questions A piston-cylinder device contains steam initally at 1 MPa, 450 C, and 2 9 m2 Steam is allowed to cool at constant pressure until It first starts condensing The saturated water-pressure table (in Sl units) is given below Saturated water-Pressure table Enthalpy Specific volume, mlg internal energy Sat. Sat. Sat. Sat Sat. Sat Sat. Sat Sat Press., temp., liquid, aor, iquid, Evap, vapor, liquid, Evap vapor, liquid, Evap vapes 800 170.41 0.001115 0.24035 719.97 1856.1 2576.0 720.87 20475 27683 2.0457 4.6160 6.6616 0.001118 022690731.00 1846.9 25779 73195 20388 277080705 4570 66409 172.94 Show all ^ lab4_NUCLEO-F44..-bin eek 3 Lab (1).docx Windows 10 Educah 1012 PMExplanation / Answer
Heat given = work done + change in internal energy
= nCv delta T + nR delta T
= nR delta T + 4.33 nR delta T
Cv = 4.33R, found by specific heatof steam per kg/(number of mole in a kg)
= 1996/(1000/18) = 4.33*8.3 =4.33R
Heat = 5.33*R*(450-100)*(10^6×2.9)/(R*(450+273))
Value of n was calculated by n= PV/RT
Heat = 7.483*10^6 J
= 7483 kJ
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