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Notes of ch silk road

Posted by Jatin Solanki 4 years, 1 month ago

CBSE > Class 11 > English Elective NCERT

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as the head boy of the school write a letter to the principal requesting him to arrange a theatre workshop for students by inviting experts from the national school of drama

Posted by Jatin Solanki 4 years, 1 month ago

CBSE > Class 11 > English Core

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Breifly mention the importance of yoga

Posted by Khushi Chauhan 4 years, 1 month ago

CBSE > Class 11 > Physical Education

1 answers

Vasudha Vasudha 4 years, 1 month ago

It brings together physical and mental disciplines to achieve a peaceful body and mind; it helps manage stress and anxiety and keeps you relaxing. It also helps in increasing flexibility, muscle strength and body tone. It improves respiration, energy and vitality. ... Yoga asanas build strength, flexibility and confidence.

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What is depression

Posted by Mayank Bhatiya 4 years, 1 month ago

CBSE > Class 11 > Accountancy

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Shri Harrish .B Eshwar 4 years, 1 month ago

Depression is a mood disorder that causes a persistent feeling of sadness and loss of interest. Also called major depressive disorder or clinical depression, it affects how you feel, think and behave and can lead to a variety of emotional and physical problems.

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Anti markovnikov rule

Posted by Arfan Sm 4 years, 1 month ago

CBSE > Class 11 > Chemistry

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Divya Grewal 4 years, 1 month ago

Anti markovnikov rule describes that in addition to reactions of alkenes or alkynes,the proton is added to carbon atom that has least number of hydrogen atoms to it.

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Aditya . 4 years, 1 month ago

Anti Markovnikov rule describes that in addition to reactions of alkenes or alkynes, the proton is added to the carbon atom that has the least number of hydrogen atoms attached to it.

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Why was Einstein summoned by the head teacher

Posted by Abhay Verma 4 years, 1 month ago

CBSE > Class 11 > English Elective NCERT

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-OCH3 group_______ the benzene ring towards electrophilic substitution reaction

Posted by Saumya Mishra -Ganpati Classes 4 years, 1 month ago

CBSE > Class 11 > Chemistry

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How to control exhaustive chlorination?

Posted by Mns Tyagi 4 years, 1 month ago

CBSE > Class 11 > Chemistry

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Jansanchar ke kary bataiye

Posted by Ridhima Soni 4 years, 1 month ago

CBSE > Class 11 > हिंदी ऐच्छिक

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Describe the mechanism of nephron (counter current mechanism)?

Posted by Michael Roy 4 years, 1 month ago

CBSE > Class 11 > Biology

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Vajra V.R 3 years, 1 month ago

The nephrons work through a two-step process: the glomerulus filters your blood, and the tubule returns needed substances to your blood and removes wastes. Each nephron has a glomerulus to filter your blood and a tubule that returns needed substances to your blood and pulls out additional wastes.

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What has not changed over the years? Does this suggest something to you?

Posted by Yo Lumi 4 years, 1 month ago

CBSE > Class 11 > English Elective NCERT

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Chapter 11 notes

Posted by Harsh Vishwakarama 4 years, 1 month ago

CBSE > Class 11 > Business Studies

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Why white Americans felt sympathy for the natives who simultaneously denied the benefit of citizenship?

Posted by Garima Jain 4 years, 1 month ago

CBSE > Class 11 > History

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Portrait

Posted by Navya Saxena 4 years, 1 month ago

CBSE > Class 11 > Painting

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Mubashara Rahman 4 years ago

Jai Ram

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paths to modernisation

Posted by ... ... 4 years, 1 month ago

CBSE > Class 11 > English Core

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EQUILIBRIUM 231 SUMMARY When the number of molecules leaving the liquid to vapour equals the number of molecules returning to the liquid from vapour, equilibrium is said to be attained and is dynamic in nature. Equilibrium can be established for both physical and chemical processes and at this stage rate of forward and reverse reactions are equal. Equilibrium constant, Kc is expressed as the concentration of products divided by reactants, each term raised to the stoichiometric coefficient. For reaction, a A + b B c C +d D Kc = [C]c [D]d /[A]a [B]b Equilibrium constant has constant value at a fixed temperature and at this stage all the macroscopic properties such as concentration, pressure, etc. become constant. For a gaseous reaction equilibrium constant is expressed as Kp and is written by replacing concentration terms by partial pressures in Kc expression. The direction of reaction can be predicted by reaction quotient Qc which is equal to Kc at equilibrium. Le Chatelier’s principle states that the change in any factor such as temperature, pressure, concentration, etc. will cause the equilibrium to shift in such a direction so as to reduce or counteract the effect of the change. It can be used to study the effect of various factors such as temperature, concentration, pressure, catalyst and inert gases on the direction of equilibrium and to control the yield of products by controlling these factors. Catalyst does not effect the equilibrium composition of a reaction mixture but increases the rate of chemical reaction by making available a new lower energy pathway for conversion of reactants to products and vice-versa. All substances that conduct electricity in aqueous solutions are called electrolytes. Acids, bases and salts are electrolytes and the conduction of electricity by their aqueous solutions is due to anions and cations produced by the dissociation or ionization of electrolytes in aqueous solution. The strong electrolytes are completely dissociated. In weak electrolytes there is equilibrium between the ions and the unionized electrolyte molecules. According to Arrhenius, acids give hydrogen ions while bases produce hydroxyl ions in their aqueous solutions. Brönsted-Lowry on the other hand, defined an acid as a proton donor and a base as a proton acceptor. When a Brönsted-Lowry acid reacts with a base, it produces its conjugate base and a conjugate acid corresponding to the base with which it reacts. Thus a conjugate pair of acid-base differs only by one proton. Lewis further generalised the definition of an acid as an electron pair acceptor and a base as an electron pair donor. The expressions for ionization (equilibrium) constants of weak acids (Ka ) and weak bases (Kb ) are developed using Arrhenius definition. The degree of ionization and its dependence on concentration and common ion are discussed. The pH scale (pH = -log[H+ ]) for the hydrogen ion concentration (activity) has been introduced and extended to other quantities (pOH = – log[OH– ]) ; pKa = –log[Ka ] ; pKb = –log[Kb ]; and pKw = –log[Kw ] etc.). The ionization of water has been considered and we note that the equation: pH + pOH = pKw is always satisfied. The salts of strong acid and weak base, weak acid and strong base, and weak acid and weak base undergo hydrolysis in aqueous solution.The definition of buffer solutions, and their importance are discussed briefly. The solubility equilibrium of sparingly soluble salts is discussed and the equilibrium constant is introduced as solubility product constant (Ksp ). Its relationship with solubility of the salt is established. The conditions of precipitation of the salt from their solutions or their dissolution in water are worked out. The role of common ion and the solubility of sparingly soluble salts is also discussed. 2020-21

Posted by Mukul Kumar 4 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Ashutosh Singh 4 years, 1 month ago

Thoda Chhota likh dete to achha hota

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You are a Mohit and movie the living at a Kasturba Hotel New Delhi write a letter to your parents to inform them about your good performance in your annual school sports events and ask also them some money to pay your rent

Posted by Poojahanshi Rekhola Rekhola 4 years, 1 month ago

CBSE > Class 11 > English Elective NCERT

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Satyam Raina 4 years ago

KASTURBA HOTEL NEW DELHI 1800001 11MARCH2022 VASANT VIHAR DELHI 180002 SUBJECT. INFORM PARENTS AND ASK FOR MONEY DEAR SIR/ MADAM I AM MOHIT I'M INFORM YOU THAT MY I GOT GOOD PERFORMANCE ANNUAL SCHOOL SPORTS IN MY SCHOOL ON SECOND POSTION YOU HEAR THIS YOU PROUD TO ME YOU FEEL GOOD AND MOM FEEL TO I WANT SOME MONEY FOR pay my pg rent and for my goods YOUR SINCERELY MOHIT

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Why i am here?

Posted by Mehak Bidhuri 4 years, 1 month ago

CBSE > Class 11 > History

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Write a debate either for or against the motion:'hard work, and not only good luck helps us to achieve success in life'.

Posted by Byul Hanbyul 4 years, 1 month ago

CBSE > Class 11 > English Core

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In what state of mind was dr Andrew when morgan mate him at the surgery

Posted by Nandita Malhotra 4 years, 1 month ago

CBSE > Class 11 > English Core

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Write down the correct statement to define a tuple T which has only one element 2.

Posted by M Nivedha 4 years, 1 month ago

CBSE > Class 11 > Computer Science

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Jagrit Dharewa 4 years, 1 month ago

T=(2,)

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consider table: bank

Posted by R. D. Santhosh Topper 4 years, 1 month ago

CBSE > Class 11 > Entrepreneurship

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What kinds of relationship shared by father and son

Posted by Ikbal Hassan 4 years, 1 month ago

CBSE > Class 11 > English Core

2 answers

Vanshika Aujla 4 years ago

Father and the sun have become complete stranger to each other complete silence found them when they are each other's presence.there is no interaction aur conversation between the father and the sun they don't speak a word to each other.

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Akshat Gupta 4 years, 1 month ago

It's like elder brother and younger brother

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Give any two illustration of Bernoulli s principles

Posted by Akash Malsa 4 years, 1 month ago

CBSE > Class 11 > Physics

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Shreyas Sreenidhi 4 years, 1 month ago

Blood flow and heart attack Dynamic lift

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Ansh Kumar 4 years, 1 month ago

When a truck moves very fast, it created a low pressure area, so dusts are being pulled along in the low pressure area. If we stand very close to railway track in the platform, when a fast train passes us, we get pulled towards the track because of the low pressure area generated by the sheer speed of the train. Enjoy ?

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Difference between hilum and microphyl

Posted by Divya. Kumari 4 years, 1 month ago

CBSE > Class 11 > Biology