FREE Trial

A film of ethanol at 20C has a surface tension of 22.3 mN/m and is maintained on

Question:

A film of ethanol at 20°C has a surface tension of 22.3 mN/m and is maintained on a wire frame as shown in Fig. P4.73. Consider the film with two surfaces as a control mass and find the work done when the wire is moved 10 mm to make the film 20 × 40 mm.
Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Answer rating: 100% (2 reviews)

Assume a free surface on ...View the full answer


answer-question-section
Answered By
tutor-profile-image
Aqib Parvej
I am teaching since my graduation time so I have teaching experience of about 5 years and in these years I learn to teach in the best and interesting way .
4.80+ 20+ Reviews 41+ Question Solved
Related Book For  book-img-for-question
Fundamentals of Thermodynamics

Fundamentals of Thermodynamics

ISBN: 978-0471152323

6th edition

Authors: Richard E. Sonntag, Claus Borgnakke, Gordon J. Van Wylen

See More Books
Question Posted:
See More Questions

Related Video

The property of the surface of a liquid that allows it to resist an external force, due to the cohesive nature of its molecules. The cohesive forces between liquid molecules are responsible for the phenomenon known as surface tension. The molecules at the surface of a glass of water do not have other water molecules on all sides of them and consequently, they cohere more strongly to those directly associated with them (in this case, next to and below them, but not above). is not really true that a \\\"skin\\\" forms on the water surface; the stronger cohesion between the water molecules as opposed to the attraction of the water molecules to the air makes it more difficult to move an object through the surface than to move it when it is completely submersed

Students also viewed these Mechanical Engineering questions

Problem-Solving Cases In Microsoft Access And Excel 12th Edition - ISBN: 130521594X - Free Book