Two air streams are combined in a continuously operated heater. The first stream (stream 1) has a molar flow rate of 9.9 mol/s. The flow of the second stream (stream 2) is unknown but its temperature is 32 °C and it has a gauge pressure of 31kPa. The outlet air stream from the heater is at 225°C, a gauge pressure of 12 kPa and flows at 1610 standard cubic meters per hour. Assume air has an average molar mass of 29, and atmospheric pressure is 1 standard atmosphere and determine the: a) absolute pressure of stream 2 in kPa b) molar flow rate of stream 2 in mol/s c) mass flow rate of stream 2 in kg/hr
Two air streams are combined in a continuously operated heater. The first stream (stream 1) has a molar flow rate of 9.9 mol/s. The flow of the second stream (stream 2) is unknown but its temperature is 32 °C and it has a gauge pressure of 31kPa. The outlet air stream from the heater is at 225°C, a gauge pressure of 12 kPa and flows at 1610 standard cubic meters per hour. Assume air has an average molar mass of 29, and atmospheric pressure is 1 standard atmosphere and determine the: a) absolute pressure of stream 2 in kPa b) molar flow rate of stream 2 in mol/s c) mass flow rate of stream 2 in kg/hr
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Transcribed Image Text:Two air streams are combined in a continuously operated heater. The first stream (stream 1) has a molar flow rate of 9.9 mol/s. The flow of the second stream
(stream 2) is unknown but its temperature is 32 °C and it has a gauge pressure of 31kPa. The outlet air stream from the heater is at 225°C, a gauge pressure of
12 kPa and flows at 1610 standard cubic meters per hour. Assume air has an average molar mass of 29, and atmospheric pressure is 1 standard atmosphere
and determine the:
a) absolute pressure of stream 2 in kPa
b) molar flow rate of stream 2 in mol/s
c) mass flow rate of stream 2 in kg/hr
d) actual volumetric flow of stream 2 in m³/hr
e) standard volumetric flow of stream 2 in m3/hr
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