Question: chemical engineering thermodynamics q2 a,b Question 2 (10 Marks) One kilogram of steam is contained in a piston/cylinder device at 800kPa and 200C. (a) If

chemical engineering thermodynamics

q2 a,b

Question 2 (10 Marks) One kilogram of steam is contained in a piston/cylinder device at 800kPa and 200C. (a) If it undergoes a mechanically reversible, isothermal expansion to 150kPa, how much heat does it absorb? (b) If it undergoes a reversible, adiabatic expansion to 150kPa, what is its final temperature and how much work is done? Hints: (a) Calculate heat using entropy equation (b) Calculate work using first law of tehrmodynamics

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