Question: Viscosity variation and velocity gradients in a non isothermal film, water is falling down a vertical wall in a film 0.1 mm thick. The water

Viscosity variation and velocity gradients in a non isothermal film, water is falling down a vertical wall in a film 0.1 mm thick. The water temperature is 100°C at the free liquid surface and 80°C at the wall surface.

(a) Show that the maximum fractional deviation between viscosities predicted by Eqs. 11.4-17 and 18 occurs when T = √T₀T_δ.

(b) Calculate the maximum fractional deviation for the conditions given.

Step by Step Solution

★★★★★

3.33 Rating (165 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Viscosity variation and velocity gradients in a nonisothermal film a We begin by determining the tem... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

6-E-C-E-T-P (188).docx

120 KBs Word File

Students Have Also Explored These Related Chemical Engineering Questions!

Accounting for Membership Fees and Rewards Program (FSET) BJ's Wholesale Club Holdings, Inc., provides the following description of its revenue recognition policies for membership fees and its reward...

The boiling points, surface tensions, and viscosities of water and several alchohols are as follows: (a) For ethanol, propanol, and n-butanol the boiling points, surface tensions, and viscosities all...

For liquid water the isothermal compressibility is given by; where r and b are functions of temperature only. If 1 kg of water is compressed isothermally and reversibly from I to 500 bar at 60(C. how...

Given is steady isothermal flow of water at 20°C through the device in Fig. P3.126. Heat-transfer, gravity, and temperature effects are negligible. Known data are D1 = 9 cm, Q1 = 220 m3/h, p1 =...

PLEASE ANSWER ALL! Choose the right one. Explain in one sentence. 1. If concentration gradients exist across the film surrounding a catalyst particle, what is likely to be reaction limiting? a....

Free convection in a slot, a fluid of constant viscosity, with density given by Eq. 1 1.3-1, is confined in a rectangular slot. The slot has vertical walls at x = + B, y = + W, and a top and bottom...

Pls solve early This problem forces you to learn about the vector cross product and curl (or rot - UK usage) operator. This is a "teach yourself' problem, and part of this course requires you to...

Rework the falling film problem for a position dependent viscosity with or mu = mu0(1-ax^2). (Hint: see solutions in Chapter 2 & 3 for falling film problem and also see Example 2.2.2) Here a is a...

Two horizontal plates placed 250mm have an oil of viscosity 20 poises. Calculate the shear stress in oil if upper plate is moved with velocity of 1250mm/s. a) 20 N/m2 b) 2 N/m2 c) 10 N/m2 d) None of...

The most common use of funds for property and casualty insurance companies is for corporate bonds and municipal securities. Treasury bills. corporate stock. commercial paper

Selecting the appropriate cost driver is the key to effective activity based costing. Identify three overhead elements in a simple product your current or former employer makes, and identify what you...

Hawkins Ceramics, a division of Piper Corporation, has an operating income of $64,000 and total assets of $400,000. The required rate of return for the company is 12%. The company is evaluating...

( b ) Evaluate Integral o c e e z ( z + 1 ) 4 d z , c : | z - 1 |

If you were to develop an accounting conceptual framework from scratch, where would you start and how would you structure it?

Accenture recently wrote an article entitledMeet the Finance 2020 Workforce,suggesting that accountants will need to not only embrace traditional financial questions of What happened and Why did it...

8Which of the following methods of gathering documents is based primarily on luck aDocuments discovered during audits bHardtoget private documents that are subpoenaed cDocuments discovered through...

On March 31, 2013, Peppermint Patty Corp. sold $1,000,000 (par value) 8%, 10-year bonds for $961,500 including accrued interest. The bonds were dated January 1, 2013. Interest is paid semi-annually...

a) Draw only the eutectoid portion of the Fe-C phase diagram. Indicate all the important compositions and temperatures. b) Also, label all the areas with (i) phases and (ii) micro constituents on two...

48. US Airways conducted a number of studies that indicated a substantial savings could be obtained by encouraging Dividend Miles frequent flyer customers to redeem miles and schedule award flights...

Suppose that a country has a fixed exchange rate and no capital controls. Due to a political crisis, projections for economic growth in coming years are revised sharply downward. As a result of the...

Capital flows can cause problems for exchange-rate stability. a. Why do countries allow the free movement of capital? b. Are some countries more likely to allow the free movement of capital than...

Derive the form of the Longmuir isotherm for the complete dissociative adsorption of SO2, i.e.: Diagrams included in the Solution

A 5.80 percent coupon bond with 13 years left to maturity can be called in nine years. The call premium is one year of coupon payments. It is offered for sale at $1,157.30. What is the yield to call...

Q.18. Inferential statistics can be performed on which type of sampling? Group of answer choices non-probability sampling any kind of sampling probability sampling convenience sampling Q. 20. Which...

Una reconocida empresa dedicada a la fabricacin de bicicletas est experimentando en los ltimos aos un interesante incremento de demanda de sus bicicletas Pionero XXI. Por esta razn ha comenzado un...