Find the properties of steam at 10 bar with a specific enthalpy of 1880 kJ/kg. (b) A cylindrical vessel of 1 m diameter and 4 m length has hydrogen gas at a pressure of 100
kPa and 27⁰C. Determine the amount of heat to be supplied to increase the gas pressure to 125
kPa. For hydrogen, take = 14.307

, = 10.183
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An open feedwater heater operates at steady state with liquid entering at inlet 1 with t? = 40°c and pl = 1 .2 mpa. water vapor att2-200°c and p2 = 1.2 mpa enters at inlet 2. saturated liquid water exits with a pressure of pa 1.2 mpa. neglect heat transfer with the surroundings and all kinetic and potential energy effects, determine the mass flow rate of steam at inlet 2 if the mass flow rate of liquid water at inlet 1 is given as 2 kg/s.