Download Engineering Chemistry by Raghupati Mukhopadhyay, Sriparna Datta PDF

By Raghupati Mukhopadhyay, Sriparna Datta

To hide a number of subject matters in one publication, that too for newcomers, is a really tricky activity. we now have attempted to provide the subject material very lucidly in order that the scholars can grab it simply. a few parts of the subject material were highlighted in order that the scholars can comprehend the real and salient good points of the subjects. The ebook covers the most recent syllabi of West Bengal country Council of Technical schooling. brief questions and solutions are given within the ebook for the advantage of the scholars for semester tests.

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Engineering Chemistry

To hide a number of themes in one ebook, that too for newcomers, is a truly tricky activity. now we have attempted to give the subject material very lucidly in order that the scholars can take hold of it simply. a few parts of the subject material were highlighted in order that the scholars can comprehend the $64000 and salient gains of the subjects.

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Sample text

A small fraction of mass is lost and is converted to energy according to the equation: E = mc2. For the reaction, 235 1 141 92 1 92 U + 0 n → 56 Ba + 36 Kr + 3 0 n. u. u. u. u. u. u. u. 2153 × 931 ≈ 200 MeV. 2 megawatt continuously for one year. To utilise the energy released during the fission, we are to control the chain reaction to get the heat energy according to necessity. Now-a-days, in an atomic reactor, the motion of neutrons are retarded by graphite or heavy water to control the chain reaction.

23 Linear combination of two 2px orbitals to form σ2p (bonding) and σ*2p (antibonding) molecular orbitals (σ-symmetry). PM5 28 29 VALENCY AND CHEMICAL BONDING (b) Side-by-side overlap (Fig. 24): + + – – – + p2* 2p fA(Antibonding) + E + – + p2 2p Bonding – Fig. 24 π-Bonding. Linear combination of two 2pz orbitals to form πz2p (bonding) and πz2p* (antibonding) molecular orbitals (π-symmetry). s*2p p*y2p, p*z2p 2p z y z z y x 2p p*y2p, py2p s2p s*2s Energy 2s 2s s2s Fig. ). B. − N. A. O. B. ⇒ no. of electrons in bonding molecular orbitals.

Q. 13. What is the special feature of a coordinate bond? Ans. This type of bond is formed by unequal sharing of electron pair, one of the participating atoms in the bond formation donates both the electrons for bond formation. The coordinate bond is indicated by an arrow to express this unequal sharing. PM5 37 38 ENGINEERING CHEMISTRY LM MM MM N H H   H  N : + H+ ⇒ H  N → H   H H Q. 14. What is a sigma bond? OP PP PP Q + Ans. This type of bond is formed by axial overlapping of s-s, p-p or sp orbitals and also sp3-s, sp2-s, sp-s, sp3-p, sp2-p etc.

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