Elementary Principles of Chemical Processes, Binder Ready Version
Elementary Principles of Chemical Processes, Binder Ready Version
4th Edition
ISBN: 9781118431221
Author: Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher: WILEY
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Chapter 7, Problem 7.13P

A piston−?tted cylinder with a 6-cm inner diameter contains 1.40 g of nitrogen. The mass of the piston is 4.50 kg, and a 25.00-kg weight rests on the piston. The gas temperature is 30°C, and the pressure outside the cylinder is 2.50 atm.

Chapter 7, Problem 7.13P, A piston?tted cylinder with a 6-cm inner diameter contains 1.40 g of nitrogen. The mass of the

  1. Prove that the absolute pressure of the gas in the cylinder is 3 . 55 × 1 0 5 Pa . Then calculate the volume occupied by the gas, assuming ideal-gas behavior.
  2. Suppose the weight is abruptly lifted and the piston rises to a new equilibrium position. Further suppose that the process takes place in two steps: a rapid step in which a negligible amount of heat is exchanged with the surroundings, followed by a slow step in which the gas returns to 30°C. Considering the gas as the system, write the energy balances for step 1, step 2, and the overall process. In all cases, neglect E k and E p . If U ^ varies proportionally with T, does the gas temperature increase or decrease in step 1? Brie?y explain your answer.
  3. The work done by the gas equals the restraining force (the weight of the piston plus the force due to atmospheric pressure) times the distance traveled by the piston. Calculate this quantity and use it to determine the heat transferred to or from (state which) the surroundings during the process.

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Chapter 7 Solutions

Elementary Principles of Chemical Processes, Binder Ready Version

Ch. 7 - Prob. 7.11PCh. 7 - Prob. 7.12PCh. 7 - A piston?tted cylinder with a 6-cm inner diameter...Ch. 7 - Prob. 7.14PCh. 7 - Prob. 7.15PCh. 7 - Prob. 7.16PCh. 7 - Prob. 7.17PCh. 7 - Prob. 7.18PCh. 7 - Prob. 7.19PCh. 7 - Prob. 7.20PCh. 7 - Air is heated from 25°C to 140°C prior to entering...Ch. 7 - Prob. 7.22PCh. 7 - Prob. 7.23PCh. 7 - Prob. 7.24PCh. 7 - Prob. 7.25PCh. 7 - The conversion of the kinetic energy of wind to...Ch. 7 - Prob. 7.27PCh. 7 - Prob. 7.28PCh. 7 - Liquid water is fed to a boiler at 24°C and 10 bar...Ch. 7 - Prob. 7.30PCh. 7 - Prob. 7.31PCh. 7 - Saturated steam at a gauge pressure of 2.0 bar is...Ch. 7 - Prob. 7.33PCh. 7 - Prob. 7.34PCh. 7 - Prob. 7.35PCh. 7 - Prob. 7.36PCh. 7 - Prob. 7.37PCh. 7 - Prob. 7.38PCh. 7 - Prob. 7.39PCh. 7 - Prob. 7.40PCh. 7 - Prob. 7.41PCh. 7 - Jets of high-speed steam are used in spray...Ch. 7 - The following diagram shows a simpli?ed version of...Ch. 7 - Three hundred L/h of a 20 mole% C3H880 nC4H10gas...Ch. 7 - Air at 38°C and 97% relative humidity is to be...Ch. 7 - A mixture containing 65.0 mole% acetone (Ac) and...Ch. 7 - Superheated steam at T1(°C) and 20.0 bar is...Ch. 7 - Prob. 7.48PCh. 7 - Prob. 7.49PCh. 7 - Eight fluid ounces (1 qt = 32 oz) of a beverage in...Ch. 7 - Prob. 7.51PCh. 7 - Prob. 7.52PCh. 7 - Prob. 7.53PCh. 7 - Prob. 7.54PCh. 7 - Prob. 7.55PCh. 7 - Prob. 7.56PCh. 7 - Prob. 7.57PCh. 7 - Prob. 7.58PCh. 7 - Prob. 7.59PCh. 7 - Prob. 7.60PCh. 7 - Prob. 7.61PCh. 7 - Prob. 7.62PCh. 7 - Arsenic contamination of aquifers is a major...Ch. 7 - Prob. 7.64PCh. 7 - Prob. 7.65P
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