EBK ELEMENTARY PRINCIPLES OF CHEMICAL P
4th Edition
ISBN: 9781119192107
Author: BULLARD
Publisher: JOHN WILEY+SONS,INC.-CONSIGNMENT
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Question
Chapter 7, Problem 7.39P
Interpretation Introduction
(a)
Interpretation:
Calculate the heat added to the mixer.
Concept introduction:
The open-system energy balance equation is,
Where,
Interpretation Introduction
(b)
Interpretation:
Calculate the mass flow rate of product stream.
Concept introduction:
The open-system energy balance equation is,
Where,
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Four kilograms of carbon dioxide (CO2) is contained in a piston-cylinder assembly with a constant pressure of 2
bar and initial volume of 1m³. Energy is transferred by heat to the CO2 at a rate of 15 W for 2.5 hours. During
this process, the specific internal energy increases by 10 kJ/kg. If no change in kinetic and potential energy occur.
determine:
(a) The heat transfer, in kJ.
(b) The final volume, in m³.
For each of the following processes that occur in an open steady state system, calcu-
late the heat transfer to or from the system if it is isothermal.
(a) 1000 g of O₂ are mixed with 1000 g of CO₂-
(b) 900 kg of water are mixed with 63 kg of nitric acid.
Data at SC:
Compound
Ĥ (kJ/kg)
HNO3 (liquid)
- 173.234
In 1 g mol H₂O
-186.347
2 H₂O
- 193.318
5 H₂O
-201.962
10 H₂O
-205.014
50 H₂O
-205.978
100 H₂O
-205.983
(g) Enthalpy change of a constant-pressure heating process can be calculated from heat ca-
pacity as follows:
AH = H(T2) – H(T1) =
CpmdT
%3D
Determine a general expression for AH that you expect to be valid over the domain of
the fitted data.
(h) What is AH for the constant pressure heating of methane from 200 K to 500 K?
(1) Assuming an average value of heat capacity over this tetmperature range (take the value at
T= 350 K) and that beat capacity is temperature-independent, how would your answer
differ from the one calculated above? That is, is a temperature-independent heat capacity
a reasonable assumption (for this problem)?
Chapter 7 Solutions
EBK ELEMENTARY PRINCIPLES OF CHEMICAL P
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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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