Answer:
Option (D)
Explanation:
In a nuclear power plant, the reactor core is comprised of various fuel assemblies. The nuclear fission takes place inside the core of the reactor, as a result of which the heat is produced immensely. This heat energy allows the water to boil and produces stream, which forces the blades of the turbines to rotate. This continuous rotation of the turbine blades ultimately generates electricity
It is one of the efficient methods as it is cheap, creates no pollution but it produces radioactive waste which is difficult to dispose of.
Thus, the excess heat in a nuclear power plant is used to rotate the turbines and produce electricity.
Hence, the correct answer is option (D).
Answer:
The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.
Answer:
option b is correct
2 p electron makes aromatic
Explanation:
An aromatic compound which is cyclic, planar and has a complete conjugate ring must have (4n + 2)pi electrons(Huckel's rule)
Huckel's Standard (4n+2 rule): For a compound to be an aromatic, a particle must have a specific number of pi (electrons with pi bonds, or lone pairs inside p orbitals) inside a shut loop of parallel, adjoining p orbitals. The pi electron tally is characterized by the arrangement of numbers created from 4n+2 where n = zero or any positive whole number (i..e, n = 0, 1, 2, and so forth.). The most widely recognized case in six pi electrons (n = 1) which is found for example in benzene, pyrrole, furan, and pyridine.
where n is the number of pi electrons
where n = 0
(4n +2) pi electrons = 2pi electrons
attached is an example of aromatic which is cyclic, planar and a complete conjugate ring
Answer:
The partial pressure of carbon dioxide present at equilibrium will decrease.
Explanation:
Let's consider the following reaction.
MgCO₃(s) ⇄ MgO(s) + CO₂(g)
<em>What will happen if the volume of the container is reduced by 25% at 300°C?</em>
To answer this question we need to consider Le Chatelier's Principle: if a system at equilibrium suffers a perturbation, it will shift its equilibrium position to counteract such perturbation.
If the volume of the container is reduced, according to Boyle's Law, the pressure of the gases will increase. Thus, the system will try to decrease the pressure by favoring the reverse reaction because there are less gaseous moles in the reactants than in the products. As a consequence, the partial pressure of carbon dioxide present at equilibrium will decrease.
Answer:
The compound contains a o molecular orbital formed by the overlap of one carbon sp2 hybrid orbital and one hydrogen sp3 hybrid orbital.
Explanation:
Molecular orbital is function which describes wave like behavior of an electron in a molecule. The molecular orbital theory describes the electronic structure of molecule using quantum mechanics. Electrons are not assigned to individual bonds between atoms. The compound contains sp2 hybrid orbial which is polar C - CI bond.