Bohr Model Radius and Energy Formulas | JEE 2027 Chemistry (English)
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Bohr Model Radius and Energy Formulas | JEE 2027 Chemistry (English)
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RankDeterminant
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1 просмотр · 10 дн. назад
Free notes + solved JEE problems for this lesson: https://rankdeterminant.com/go/yt-che...
All lessons of this unit: • JEE 2027 Chemistry | Unit 2 Atomic Structure
Bohr's three postulates, taught like a live JEE class: stationary orbits, quantised angular momentum mvr = nh/2π, and ΔE = hν for a jump. Learn the radius, speed and energy of the nth orbit of H, He+ and Li2+, why K = −E and U = 2E (K : U : E = 1 : −2 : −1), the topper's trick of remembering the powers of n and Z, and two JEE-style solved problems with the classic traps.
Chapters
0:00 Introduction
0:35 Bohr's three postulates (1913)
1:54 Radius and speed in orbit n
2:59 Energy of orbit n
4:19 Kinetic and potential energy
4:54 Topper's trick: remember the powers
5:39 Example 1: radius of H second orbit and Li2+ first orbit
6:33 Example 2: find the orbit from KE, then the PE
7:51 Quick revision: postulates, radius, speed and energy
A free JEE paper every day and a full JEE Main mock every Sunday: https://rankdeterminant.com/go/yt-dai...
Chemistry · Unit 2 · Atomic Structure · Chapter 3 · Bohr's Model of the Hydrogen Atom
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Narrated with a computer voice.