Answered: Air at a pressure of 1 atm and a…

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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Air at a pressure of 1 atm and a temperature of 50 C is in parallel flow over the top surface of a flat plate that is heated to a uniform temperature of 100 C. The plate has a length of 0.20 m (in the flow direction) and awidth of 0.10 m. The Reynolds number based on theplate length is 40,000. What is the rate of heat transferfrom the plate to the air? If the free stream velocity ofthe air is doubled and the pressure is increased to10 atm, what is the rate of heat transfer? (Hint: we assume ideal gas law applies and k, μ and Pr are independent of pressure)

Definition Definition Law that is the combined form of Boyle's Law, Charles's Law, and Avogadro's Law. This law is obeyed by all ideal gas. Boyle's Law states that pressure is inversely proportional to volume. Charles's Law states that volume is in direct relation to temperature. Avogadro's Law shows that volume is in direct relation to the number of moles in the gas. The mathematical equation for the ideal gas law equation has been formulated by taking all the equations into account: PV=nRT Where P = pressure of the ideal gas V = volume of the ideal gas n = amount of ideal gas measured in moles R = universal gas constant and its value is 8.314 J.K-1mol-1 T = temperature

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