Define vapour pressure - properties of solutions, Biology

Assignment Help:

Vapour Pressure

The intermolecular forces in a liquid prevent most molecules from escaping from the surface. However, due to molecular collisions, some molecules have sufficient kinetic energy to escape from the liquid.  This causes the evaporation of the molecules into the gaseous state.  Any liquid, therefore, has above its surface, a certain amount of material in the form of vapour. Vapour molecules move  in all directions. Some of the liquid get condensed.  When the rate of evaporation and condensation are equal, an equilibrium is established.  The pressure exerted by vapour above the liquid when equilibrium exists is vapour pressure.  The vapour pressure is temperature dependent.

 


Related Discussions:- Define vapour pressure - properties of solutions

Explain coronary heart disease, Apart from any inherited tendency towards c...

Apart from any inherited tendency towards coronary heart disease, what are thought to be the four major risk factors?  The four major risk factors for coronary heart disease ar

What are epithelial tissues, What are epithelial tissues? What are their ge...

What are epithelial tissues? What are their general function and how is that function associated to the features of the tissue? Epithelial tissues, also known as epithelia, are

Phylum platyhelminhes, what are the classification of phylum platyhelminthe...

what are the classification of phylum platyhelminthes?

Which are mineral salts, Q. Which are mineral salts? Where in living beings...

Q. Which are mineral salts? Where in living beings can found mineral salts? Mineral salts are simple inorganic substances made of metallic chemical elements, like sodium, iron,

How low birth weight cause protein energy malnutrition, How Low Birth Weigh...

How Low Birth Weight cause Protein Energy Malnutrition? The beginning of PEM in children starts in US from the time of their birth. At least a third of the Indian children are

Explain the cost utility analysis, Explain the Cost Utility Analysis? C...

Explain the Cost Utility Analysis? Cost utility analysis: Cost utility analysis provides for measurement of health outcomes for a given cost. The health outcomes are measured q

Animal classification, Explain metachrosis in frogs? How it is different fr...

Explain metachrosis in frogs? How it is different from change of skin colour of chemleon?

What is angina pectoris, Q. What is Angina Pectoris? Chest discomfort i...

Q. What is Angina Pectoris? Chest discomfort is often reported by most patients especially those which are chronic cases of dyslipidemia and/or hypertension. Like diarrhoea and

Illustrate morphological evidence, Q. Illustrate Morphological Evidence? ...

Q. Illustrate Morphological Evidence? Morphology is the study of structure and form of plants and animals usually dealing with the organism and its component organs. Morphologi

What is low - density lipoprotein receptor pathway, Q. What is low - densit...

Q. What is low - density lipoprotein receptor pathway? Ans. The increasing cellular free cholesterol generated regulates the activities of two enzymes that are of crucial

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd