Three kilograms of neon in a constant volume system. The neon is initially at 550 kPa and 350 K. Its pressure is increased to 2000 kPa by a paddle work with 210 kJ of heat added. Find (
1. Three kilograms of neon in a constant volume system. The neon is initially at 550 kPa and 350 K. Its pressure is increased to 2000 kPa by a paddle work with 210 kJ of heat added.
Find (a) the final temperature, (b) the change in internal energy, (c) the change in enthalpy, (d) the nonflow work.
2. An ideal gas with Cv = 1.62 kJ/kg-K and R = 273J/kg-K expands from 0.15 m3 and 27oC to 0.35 m3 during an isobaric process with p = 150kPa. Consider the process reversible nonflow, determine (a) the heat, (b) the change in internal energy, © the work nonflow, (d) the change in entropy.
3. A perfect gas with R = 320 J/kg-K and Cp = 1.6 kJ/kg-K. If 150 kJ of heat is added to 5 kg of this gas at constant pressure when t1 = 35 deg.C, find (a) the work nonflow, (b) U, (c)S.
4. Three kilograms of an ideal gas with R = 204 J/kg-K and k = 1.667 have 316 kJ of heat added during an isobaric process. The initial temperature is 38oC. Determine (a) Wnf, (b) U, (c) S.
5. During an isothermal process at 30oC, the pressure on 4 kg of air drops from 550 kPa to 34.5 kPa gage. For an internally reversible process, determine (a) the work nonflow, (b) S.
6. There are compressed isothermally 22 m3 of air measured at 27oC and 1378 kPa. If p2 = 3790 kPa, compute (a) the heat (gain or loss?), (b) the change in entropy.
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