Question

Steam in a 2 m rigid sealed vessel is initially at P,=1 MPa, T.-500 °C. The steam undergoes an isochorie process until the final pressure P2-200 kPa. The specific internal energy and the specific entropy at state 2 are respectively u21092.5 kJ/kg and s2- 3.198 kJ/kg-K. 1 Tsing your stram tahle read the values of the following properties:

Answer 1

301. Soitial state PE Impa 1 Iconstant enure line C itrum? ) 7 Rigid sealed vessel. PI = 1 MPa , Ti = 500c from steam table at p = 1 MPa 1. Tsat = 179,88 € T :T, Tsat At eniteal state, steam is superheated. : from reperheated steam table, at i = 1 MPa 1 . TIE 300c cos especific internal Energy 4, = 3125 kg 23 specific Volume 1, 50.3540 mg en es specific Entropy , Sja-7-7647 kJ (23 Specific volume at state 2 (13) : Heam undergoes an Isochoric procesire, constant volume process Vza VIF 0.35417 men O RgK

(3) for this system, how much work will be done. , i Steam undergoes an Isochoric pucers i.e. constant volume process and tark is rigid. i work done, Wzo [:' 4V=0] (4) mars of steam in the vessel in kg (m) rolume of tank = volume of steam V=2m² sla Also, V,EVR=0354.11 ms : specifice volume, v = volwassenen 20:35411 = 2 : mr. 1941 т.