Which F Cl Br is most stable? Generally, the singlet is less stable as the triplet has half-filled orbitals which lead to stability. However, whenever a group that can give electrons, they stabilize the singlet by back donation of their lone pair into the vacant orbital of the singlet carbon. Why is Cl more acidic […]
What is the most environmentally friendly driveway?
What is the most environmentally friendly driveway? Gravel. Pros: Gravel is a great option for the budget-conscious, especially people with longer driveways, Bean says. Another selling point: “Gravel compacts much better than plain rocks,” creating a more stable surface that sheds water easily, Bean says. Are concrete pavers bad for the environment? Concrete and asphalt […]
How do you solve for boiling point?
How do you solve for boiling point? The rather simple equation for determining boiling point of a solution: delta T = mKb. Delta T refers to the boiling-point elevation, or how much greater the solution’s boiling point is than that of the pure solvent. The units are degrees Celsius. Kb is the molal boiling-point elevation […]
Is magnetising current affected by load?
Is magnetising current affected by load? Magnetising current flows into the primary irrespective of transformer load condition. Why magnetizing current is important? A certain amount of current is drawn by a transformer from the source connected to it primary even when no load is connected to its secondary. A part of this current is used […]
What is the toughest question?
How do you show a force is conservative?
How do you show a force is conservative? Equivalently, a force is conservative if the work it does around any closed path is zero: Wclosed path=∮→Econs⋅d→r=0. What are conservative forces give two examples? Gravitational force is an example of a conservative force, while frictional force is an example of a non-conservative force. Other examples of […]
Why do we use microwave for communication?
Why do we use microwave for communication? Uses. Microwaves are widely used for point-to-point communications because their small wavelength allows conveniently-sized antennas to direct them in narrow beams, which can be pointed directly at the receiving antenna. What type of information can be sent by microwaves? Microwaves are used mostly for point-to-point communications systems to […]
Why do we need energy to remove an electron?
Why do we need energy to remove an electron? The energy needed to remove an electron from a neutral atom is the ionization energy of that atom. It is easier to remove electrons from atoms with a small ionization energy, so they will form cations more often in chemical reactions. What would happen if an […]
How would you classify the change in matter when wood is burned?
How would you classify the change in matter when wood is burned? Burning of wood is a chemical change as new substances which cannot be changed back (e.g. carbon dioxide) are formed. For example, if wood is burned in a fireplace, there is not wood anymore but ash. Other examples include burning of a candle, […]
Do sunspots affect weather?
Do sunspots affect weather? A new study in the journal Science by a team of international of researchers led by the National Center for Atmospheric Research have found that the sunspot cycle has a big effect on the earth’s weather. When in the cycle does the maximum number of sunspots occur? Solar maximum or solar […]