Which quantum NO is sufficient to determine the energy of the electron in hydrogen atom? En = -13.6 eV/n2. Here n is called the principle quantum number. The values En are the possible value for the total electron energy (kinetic and potential energy) in the hydrogen atom. Which set of quantum numbers could describe an […]
What was the conflict between Wilkins and Franklin?
What was the conflict between Wilkins and Franklin? An unhappy time. A misunderstanding resulted in immediate friction between Wilkins and Franklin, and their clashing personalities served to deepen the divide. The two were to work together on finding the structure of DNA, but their conflicts led to them working in relative isolation. Why was Rosalind […]
What is the short form of atomic mass?
What is the short form of atomic mass? atomic mass unit: Abbreviated as “amu.” A mass equal to one twelfth the mass of an atom of carbon-12. What is Atom size? Atomic Properties. Size. The atom is about 10-10 meters (or 10-8 centimeters) in size. This means a row of 108 (or 100,000,000) atoms would […]
Why ionisation enthalpy of nitrogen is higher than oxygen?
Why ionisation enthalpy of nitrogen is higher than oxygen? An atom is highly stable when its valence orbital is completely filled or half-filled and in nitrogen, the valence p orbital is exactly half filled. So, the ionization energy of nitrogen is more than that of oxygen. What is the first ionization of oxygen? First Ionization […]
What are the disadvantages of OTEC?
What are the disadvantages of OTEC? Disadvantages of OTEC system Capital investment is very high. Conversion efficiency is very low about 3-4% due to small temperature difference in between the surface water and deep water. Low efficiency of these plants coupled with high capital cost and maintenance cost makes them uneconomical for small plants. What […]
What statement is true of liquids?
What statement is true of liquids? A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a (nearly) constant volume independent of pressure. As such, it is one of the four fundamental states of matter (the others being solid, gas, and plasma), and is the only state with […]
How many calories should I eat in a day?
How many calories should I eat in a day? Though it differs depending on age and activity level, adult males generally require 2,000-3000 calories per day to maintain weight while adult females need around 1,600-2,400 according to the U.S Department of Health. The body does not require many calories to simply survive. What are the […]
What are the three ways that vegetation is important in slope stability?
What are the three ways that vegetation is important in slope stability? There are four major ways in which vegetation influences slope stability: wind throwing, the removal of water, mass of vegetation (surcharge), and mechanical reinforcement of roots. What factors can actually enhance the slope stability? Erosion, driven by gravity, is the inevitable response to […]
How much is one pint of liquid?
Which of the following characteristics are associated with Australopithecus afarensis?
Which of the following characteristics are associated with Australopithecus afarensis? afarensis had both ape and human characteristics: members of this species had apelike face proportions (a flat nose, a strongly projecting lower jaw) and braincase (with a small brain, usually less than 500 cubic centimeters — about 1/3 the size of a modern human brain), […]