Why butane has a higher boiling point than 2 Methylpropane? Butane has a higher boiling point because the dispersion forces are greater. The molecules are longer (and so set up bigger temporary dipoles) and can lie closer together than the shorter, fatter 2-methylpropane molecules. Why do intermolecular forces increase with size? The strength of London […]
What can bring about a change and QD?
What can bring about a change and QD? CHANGE IN QUANTITY DEMANDED: A movement along a given demand curve caused by a change in demand price. The only factor that can cause a change in quantity demanded is price. This change in quantity demanded is caused by a change in the demand price. What are […]
Do you need a boating license in Illinois?
How transportation will change in the future?
How transportation will change in the future? The future of transportation involves moving into new, smarter sources of energy, modes of transport and physical and technological infrastructure to support these transportation innovations. Three common themes in transportation innovation are: smart technology. electrification. How did trains and railroads change life in America? It made commerce possible […]
What is meant by critical resolved shear stress?
What is meant by critical resolved shear stress? Critical resolved shear stress (CRSS) is the component of shear stress, resolved in the direction of slip, necessary to initiate slip in a grain. What is critical resolved shear stress derive its formula? Schmid’s Law : states that the critically resolved shear stress (τ) is equal to […]
Why is the Buckingham π theorem used?
Why is the Buckingham π theorem used? Significance. The Buckingham π theorem provides a method for computing sets of dimensionless parameters from given variables, even if the form of the equation remains unknown. Most importantly, Buckingham’s theorem describes the relation between the number of variables and fundamental dimensions. What are repeating variables in Buckingham Pi […]
What are the advantages of method of section?
What are the advantages of method of section? The primary benefit of the method of sections is that, for a determinate truss, you can find the force in any individual member quickly without having to solve through the entire truss one joint at a time (which you must do when using the method of joints). […]
What are the 3 types of relationships in a database?
What are the 3 types of relationships in a database? There are three types of relationships between the data you are likely to encounter at this stage in the design: one-to-one, one-to-many, and many-to-many. To be able to identify these relationships, you need to examine the data and have an understanding of what business rules […]
How did architecture evolved?
How did architecture evolved? Architectural style evolved into something much more graceful through the Byzantine and Romanesque periods. It was during 527 – 1200 that the majority of architecture began to use brick instead of stone, changing forever the way that buildings would be constructed. What are the current topics in architectural research? Architecture and […]