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Applying the Energy BalanceAmmonia vapor in a
Chapter 3, Problem 53P(choose chapter or problem)
Ammonia vapor in a piston-cylinder assembly undergoes a constant-pressure process from saturated vapor at 10 bar. The work is \(+16.5 \mathrm{~kJ} / \mathrm{kg}\). Changes in kinetic and potential energy are negligible. Determine (a) the final temperature of the ammonia, in \({ }^{\circ} \mathrm{C}\), and (b) the heat transfer, in \(\mathrm{kJ} / \mathrm{kg}\).
Questions & Answers
QUESTION:
Ammonia vapor in a piston-cylinder assembly undergoes a constant-pressure process from saturated vapor at 10 bar. The work is \(+16.5 \mathrm{~kJ} / \mathrm{kg}\). Changes in kinetic and potential energy are negligible. Determine (a) the final temperature of the ammonia, in \({ }^{\circ} \mathrm{C}\), and (b) the heat transfer, in \(\mathrm{kJ} / \mathrm{kg}\).
ANSWER:Step 1 az
Calculate the final temperature of ammonia and and heat transfer in kJ/kg.