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Formula for solving thermodynamic numerical questions

Posted by Roopesh Daharwal 8 years, 1 month ago

CBSE > Class 11 > Chemistry

0 answers

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Why do we take W=-PΔV in negetive?

Posted by Birendra Kumar 8 years, 1 month ago

CBSE > Class 11 > Chemistry

2 answers

Aditya Baliyan 8 years, 1 month ago

because we take dV as (final volume - initial volume) And as you know final volume is less than the initial volume due to more pressure in side. then the value of dV is negative. hence,W=P(-dV) => W=-PdV

Manjeet Singh 8 years, 1 month ago

Because it is in opposite direction

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What is Gibbs energy?

Posted by Akash Tripathi 8 years, 1 month ago

CBSE > Class 11 > Chemistry

4 answers

Lakie Chandola 8 years, 1 month ago

It is represented as G=H-TS

Lakie Chandola 8 years, 1 month ago

The maximum amount of energy available to a system during a process that can be convert into useful work is known as Gibbs free energy

Shubham Kushwaha 8 years, 1 month ago

Gibbs energy is a state function which is related with enthalpy and entropy.

Shubham Kushwaha 8 years, 1 month ago

When in any reaction , spontaneity is not determined by ∆H and ∆S individually , then we relate these both state function to find a new state function, that is called Gibbs energy

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What is matter?

Posted by Mohammad Sahil 8 years, 1 month ago

CBSE > Class 11 > Chemistry

3 answers

Manjeet Singh 8 years, 1 month ago

Matter are those who posses mass space and volume

Annu Raj 8 years, 1 month ago

Everything around us in the form of solid, liquid ,gaseous form is called matter

Jahanvi Malhotra 8 years, 1 month ago

Matter is a substance that has inertia( property of matter that causes it to resist changes in velocity ) and occupies physical space. According to modern physics, matter consists of various types of particles, each with mass and size.

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How we do balancing

Posted by Amit Yadav 8 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Manjeet Singh 8 years, 1 month ago

By maintaining equal no. Of electrons in Bothal reactant and product

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why sodium hydrogencarbonate is called baking soda?

Posted by Ankit Kumar 8 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Manjeet Singh 8 years, 1 month ago

Because it is cooking material

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Can anyone please send me notes of resonance?

Posted by Aman Singh 8 years, 1 month ago

CBSE > Class 11 > Chemistry

0 answers

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What is ionic bond?Give examples

Posted by Rohit Padhi 8 years, 1 month ago

CBSE > Class 11 > Chemistry

2 answers

Ashish Soni 8 years, 1 month ago

Example like Nacl , BeF2 etc u just fill the octate u will understand it

Ashish Soni 8 years, 1 month ago

The bond which formed by transferring of electron

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uses of baking soda

Posted by Neha Sharma 8 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Ashish Soni 8 years, 1 month ago

Pat baking soda onto your underarms to neutralize body odor. Baking soda is a safe and effective antacid to relieve heartburn, sour stomach and/or acid indigestion. Refer to baking soda package for instructions. For insect bites, make a paste out of baking soda and water, and apply as a salve onto affected skin.

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A running man has half the kinetic energy as that as of a boy half his mass. The man speeds up by 1 m/so that the kinetic energies of the boy and man are equal. Calculate the initial speeds of boy and man

Posted by Manjeet Singh 8 years, 1 month ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

General formula for trihydric alcohol

Posted by Abhishek Singh 8 years, 1 month ago

CBSE > Class 11 > Chemistry

0 answers

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Structure of kMnO4

Posted by Anuj Soni 8 years, 1 month ago

CBSE > Class 11 > Chemistry

2 answers

Ashish Soni 8 years, 1 month ago

Mn attached with 3 molecules of OXygen with double bond and 1 molecule of OXygen with single bond on other side the one molecule of OXygen is attaches with single bond with k

Anuj Soni 8 years, 1 month ago

???????????????

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What is common ion effect

Posted by Jasmer Panjetha 8 years, 1 month ago

CBSE > Class 11 > Chemistry

0 answers

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What are canonical structure

Posted by Sambhav Tyagi 8 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Chetna Sachdeva 8 years, 1 month ago

Resonating structures are the canonical forms

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Hybrid

Posted by Prince Dhan 8 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Seema Chauhan 8 years, 1 month ago

To make the quality of two or more than two in one

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On which factor does the concentration of solute in a saturated solution depends?

Posted by Nikita Dhariwal 8 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Manjeet Singh 8 years, 1 month ago

Solvent

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What is the full form of chemistry

Posted by Lakie Chandola 8 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Sia ? 4 years, 7 months ago

C-Carbon
H-Hydrogen
M-Metals
E-Elements
S-Sorting
T-Testing
R-Reacting
Y-Yielding

ANSWER

define mesomeric effect

Posted by Tanveer Alam 8 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Ashish Soni 8 years, 1 month ago

The mesomeric effect in chemistry is a property of substituents or functional groups in a chemical compound.

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Short note on fractional distillation

Posted by Ashmit Kashive 8 years, 1 month ago

CBSE > Class 11 > Chemistry

0 answers

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How can I improve myself in chemistry numerical

Posted by Abhishek Kumar 8 years, 1 month ago

CBSE > Class 11 > Chemistry

4 answers

Manjeet Singh 8 years, 1 month ago

By mentally thinking that i can do it

Reena Saifi 8 years, 1 month ago

By solving them again and again

Arnav Singh 8 years, 1 month ago

First study the basics and then try numericals

Shubham Chauhan 8 years, 1 month ago

Study hard

ANSWER

Lewis structure of butene

Posted by Deepak Kushwaha 8 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Ashish Soni 8 years, 1 month ago

CH3 -CH2-CH2-CH3

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In first chapter there is a ouestion no 2 m mass percent of oxygen is wrong if it is right then tell me how this was

Posted by Princess Sonia 8 years, 1 month ago

CBSE > Class 11 > Chemistry

2 answers

Ashish Soni 8 years, 1 month ago

Not princess cute princess

Manjeet Singh 8 years, 1 month ago

Sonia you are princess don't worry

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What is black body radiation

Posted by Shivam Kumar 8 years, 1 month ago

CBSE > Class 11 > Chemistry

2 answers

Ashish Soni 8 years, 1 month ago

The radiation which come from black body on changing conditions

Mehak Chourasia 8 years, 1 month ago

Black body is a body which absorb all type of substances and radiation .......so the radiation given out by black body is black body radiation

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why water has maximum density at 4.c

Posted by Nikhil Chaudhary 8 years, 1 month ago

CBSE > Class 11 > Chemistry

0 answers

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Isomerism means

Posted by Kaviyadharshini Vijayagopal 8 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Sayan Debnath 8 years, 1 month ago

Same molecular formula but different structure

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A bulb emits light discontinously but it appears emitting light continously

Posted by Sandeep Kulshrestha 8 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Rajiv Sharma 8 years, 1 month ago

Time between two successive photons is very very small

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How to draw a lewis dot structure

Posted by Sachin Meghwanshi 8 years, 1 month ago

CBSE > Class 11 > Chemistry

3 answers

Reena Saifi 8 years, 1 month ago

Not 10 chem. Book.It is better described in 11 book ?

Ashish Soni 8 years, 1 month ago

First of all u have to learn the valence shell electron of all the atom and the draw it particular ly and complete the octate

Sayan Debnath 8 years, 1 month ago

Read class x chem book

ANSWER

What is hydrolith????

Posted by Dipens Rajput 8 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Ashish Soni 8 years, 1 month ago

hydrolith - a saltlike binary compound (CaH2) used as a reducing agent and source of hydrogen. calcium hydride. hydride - any binary compound formed by the union of hydrogen and other elements.

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What is the general characteristics of alkali metals?

Posted by Dipanshu Bokade 8 years, 1 month ago

CBSE > Class 11 > Chemistry

3 answers

Ashish Soni 8 years, 1 month ago

The alkali metals, found in group 1 of the periodic table (formerly known as group IA), are very reactive metals that do not occur freely in nature. These metals have only one electron in their outer shell. Therefore, they are ready to lose that one electron in ionic bonding with other elements.

Manjeet Singh 8 years, 1 month ago

They belong to first group in periodic table and their valency is plus 1

Nikhil Malik 8 years, 1 month ago

1electron in valence shell Show +1oxidation state Form ionic bond Their hydrides are alkaline in nature Atomic size increases Is ionization enthalpy decreases