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Priya Dharshini ☺☺ 7 years ago

Read english text book atleast 2 times.write meanings of all the vocabulary words while reading text book.read news paper daily to get good writing skills.read books of value based.practice all the passage in this app.then u will get nice marks

4Thank You

ANSWER

one mole of pcl5 is heated one litre of closed container if 0.5 mole of chloride is found at equilibrium calculate the value of of equilibrium constant

Posted by Nancy Rajput 7 years ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

In the lat two years have observed immerse increase in traffic in your city. Give a note on 500-1000words minimum ..to reduce traffic congestion on city roads..

Posted by Avi Singh 7 years ago

CBSE > Class 11 > Other Subjects

0 answers

ANSWER

Two satellites of a planet have periods 32 days

Posted by Vineet Rana 5 years, 8 months ago

CBSE > Class 11 > Physics

1 answers

Muskan ???? 7 years ago

Soo??

ANSWER

Who defined the philosophy of constitution

Posted by Ishika Mathur 7 years ago

CBSE > Class 11 > Political Science

1 answers

Akash Negi 7 years ago

It is defined in the constitution of India.

ANSWER

Is the triple point constant point?

Posted by Ayushi Ayushi 7 years ago

CBSE > Class 11 > Physics

6 answers

Ayushi Ayushi 7 years ago

Thanks

Ankit Singh 7 years ago

Triple point. ... In thermodynamics, the triple point of a substance is the temperature and pressure at which the three phases (gas, liquid, and solid) of that substance coexist in thermodynamic equilibrium. For example, the triple point of mercury occurs at a temperature of −38.83440 °C and a pressure of 0.2 mPa.

Sejal Sharma 7 years ago

No it is not constant for evry matter

Sejal Sharma 7 years ago

In thermodynamics, the triple point of a substance is the temperature and pressure at which the three phases (gas, liquid, and solid) of that substance coexist in thermodynamic equilibrium.for example, the triple point of mercury occurs at a temperature of −38.83440 °C and a pressure of 0.2 mPa. In addition to the triple point for solid, liquid, and gas phases, a triple point may involve more than one solid phase, for substances with multiple polymorphs. Helium-4 is a special case that presents a triple point involving two different fluid phases (lambda point).

Ayushi Ayushi 7 years ago

I am trying to say ," is the triple point constant for every matter or different?

Nancy Rajput 7 years ago

i dont understsnd your question

ANSWER

Centre of mass depends on???

Posted by Muhammad Altaf Raja 7 years ago

CBSE > Class 11 > Physics

2 answers

Sheetal Singh 7 years ago

Center of mass depends upon many physical quantity like velocity , acceleration , mass , position , lenght

Raghav Patidar 7 years ago

mass ,position

ANSWER

How to sturdy physics?

Posted by Muhammad Altaf Raja 7 years ago

CBSE > Class 11 > Physics

3 answers

Ankit Singh 7 years ago

Nice suggestions

Priya Dharshini ☺☺ 7 years ago

Understand the concepts dont mug up the derivation.try to prove it ur self after understanding it. If a question of physics is given try to find out all the given things and what all u need to find from that.read ncert whole u will uderstand everything

Nancy Rajput 7 years ago

by understanding their concepts and do more practise of numerical

ANSWER

Find value of sin18°

Posted by Sanket Mane 7 years ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

End points of such Letus Rectun of hyperbola which is in any of the 4 QUADRANT

Posted by Akash Gautam 7 years ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

What is triple point of water ?

Posted by Ayushi Ayushi 7 years ago

CBSE > Class 11 > Physics

2 answers

Ayushi Ayushi 7 years ago

Thanks

Nancy Rajput 7 years ago

Triple point is the intersection on a phase diagram where three phases coexist in equilibrium. Triple point of water is the stage where solid liquid and vapour all exists. The triple point of water, 273.16 K ( 00C) at a pressure of 611.2 Pa

ANSWER

Can you discribe thermal expansion of gases?

Posted by Ayushi Ayushi 7 years ago

CBSE > Class 11 > Physics

3 answers

Ankit Singh 7 years ago

Yours welcome

Ayushi Ayushi 7 years ago

Thanks

Ankit Singh 7 years ago

In case of gases, when balloon is partially inflated in a cool room it expands to full size when put in warm water. This all is due to thermal expansion. So, increase in dimension of a body due to increase in temperature is thermal expansion. The expansion in is called linear expansion.A gas expands when heated and condenses when cooled. Charles' Law predicts a four-fold decrease in the volume of a gas that is cooled from room temperature to the temperature of liquid nitrogen (77 K). ... Removing the balloon exposes the cold balloon to higher temperatures.

ANSWER

Difference between limits and derivatives

Posted by Divya Gupta 4 years, 6 months ago

CBSE > Class 11 > Mathematics

1 answers

Sia ? 4 years, 6 months ago

The derivative is the slope of a function at some point on the function. The limit is your best guess at where the function will eventually end up when it approaches a particular number. The slope of a function could be 0 and it could be approaching 2 at x=0 if the function is y=2, for example.

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What

Posted by Shreya Singh 7 years ago

CBSE > Class 11 > History

0 answers

ANSWER

Anyone here who use brainly app..?

Posted by Swaggy Harshit⚘ 7 years ago

CBSE > Class 11 > Biology

3 answers

Rani Layek 7 years ago

Wha bahut jldi pehchan liye

Swaggy Harshit⚘ 7 years ago

Rani..? Tum vhaii phale wali rani ho kya..?

Rani Layek 7 years ago

Yes

ANSWER

HiHi how r u

Posted by Balaji Manikandan 5 years, 8 months ago

CBSE > Class 11 > English Core

3 answers

Priya Dharshini ☺☺ 7 years ago

Fine

Ish Chaudhary 7 years ago

Himani ?? 7 years ago

Heloo

ANSWER

Whether NJAC (National Judicial Appointment Commission) system is followed currently in India for the appointment of judges? Sir Plz reply soon because my exam are going now.

Posted by Aditya Singh 7 years ago

CBSE > Class 11 > Political Science

2 answers

Aditya Singh 7 years ago

On 6oct 2015 by SC it was declared unconstitutional.

Akash Negi 7 years ago

Yes

ANSWER

A narrow uniform glass tube contains air enclosed by 15 cm long thread of hg. When the tube is vertical with the open and uppermost the air column is 30 cm long when the tube is inverted the length of air column becomes 45cm calculate atmospheric pressure

Posted by Tabish Rehan 7 years ago

CBSE > Class 11 > Physics

0 answers

ANSWER

what is Sweaberg unit in ribosome?

Posted by Sivan Karthick 7 years ago

CBSE > Class 11 > Biology

1 answers

Saba Elias 7 years ago

Svedberg unit is a measure of particle size dependent on the speed with which the particles sediment in the ultracentrifuge. S=1×10 to the power -13 The ribosomes are of 3 types namely 70s and 80s 70s are found in prokaryotes and 80s are found in eukaryotes

ANSWER

what are the models of Plasma membrane? who found it and in the year?

Posted by Sivan Karthick 7 years ago

CBSE > Class 11 > Biology

4 answers

Kunal Bhardwaj 7 years ago

http://www.biologydiscussion.com/cell/plasma-membrane/top-4-historical-models-of-plasma-membrane-cell-biology/83448

Kunal Bhardwaj 7 years ago

This is also known as unit membrane model. This model was proposed by Davson Daniell and Robertson. When surface tension measurements made on the membranes, it suggests the presence of proteins. After the existence of proteins the initial lipid bilayer model proposed by Gorter and Grendel was modified. It was suggested that surface tension of cells is much lower than what one would expect if only lipids were involved. It may also be observed that if protein is added to model lipid water system, surface tension is lowered. This suggested indirectly the presence of proteins. On this basis Davson and Danielli proposed that plasma membrane contained a lipid bilayer with protein on both surfaces. Initially they supposed that proteins existed as covalently bonded globular structures bound to the polar ends of lipids. Subsequently they developed the model in which the protein appears to be smeared over the hydrophilic ends of the lipid bilayer. This model makes its popularity for a long time. With the availability of electron microscope later, fine structure of plasma membrane could be studied. Definite plasma membrane of 6 nm to 10 nm (10nm = 100 Å; 1 nm = 10_6mm) thickness was observed on surface of all cells, and plasma membranes of two adjacent cells were found to be separated by a space, 1-15nm wide.

Kunal Bhardwaj 7 years ago

2. Unit Membrane Model (Protein-Lipid Bilayer-Protein):

Kunal Bhardwaj 7 years ago

The following points highlight the top four historical models of Plasma Membrane. The models are: 1. Lipid and Lipid Bilayer Models 2. Unit Membrane Model (Protein-Lipid Bilayer-Protein) 3. Fluid Mosaic Model 4. Dannelli Model. 1. Lipid and Lipid Bilayer Model: This model to explain the structure of plasma membrane was given by Overton, Gorion and Grendel. Previously only indirect information was available to explain the structure of plasma membrane. In 1902, Overton observed that substances soluble in lipid could selectively pass through the membranes. On this basis he stated that plasma membrane is composed of a thin layer of lipid. Subsequently, Gorter and Grendel in 1926 observed that the extracted from erythrocyte membranes was twice the amount expected if a single layer was present throughout the surface area of these cells. On this basis they stated that plasma membrane is made up of double layer of lipid molecules. These models of Gorter and Grendel could not explain the proper structure of plasma membrane but they put the foundation of future models of membrane structure.

ANSWER

what is the different between Sigma and Integral

Posted by Sivan Karthick 7 years ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Largest country

Posted by Suryansh Dhiman 7 years ago

CBSE > Class 11 > Geography

1 answers

Chesta Pawan Manchanda 7 years ago

Russia which have 17,098, 242sq/km area

ANSWER

Define conjugate acid and conjugate base

Posted by Sivan Karthick 7 years ago

CBSE > Class 11 > Biology

1 answers

Nikita Saran 7 years ago

Cojugate acid is obtained from base in which one H+ in added. Cojugate base is one which is obtained from acid where one H+ is removed. For example :- NH3 + H2O ➡️ NH4 + OH In this example, NH4 is conjugate acid of base NH3 and OH is conjugte base of acid H2O.

ANSWER

define normality? and write the formula

Posted by Sivan Karthick 7 years ago

CBSE > Class 11 > Chemistry

2 answers

Ayushi Ayushi 7 years ago

Normality indicates the concentration of the solution. Normality definition is the weight of solute dissolved in a liter of solution. Normality of a solution can be calculated when atomic mass and volume are known. If the composition of solute and solvent are same, the solution is saturated. Normality formula is given by, Normality Formula Multiplying molarity can consider favorable normality calculation by the number of equivalents. Normality (N) = Molarity (M) x number of equivalents Example 1 Determine the normality of 0.1381 mol of NaOH, which is dissolved in 300 mL. Solution- Equivalent solute = 0.1381mol x 1 eq/mol Solution = 300mL = 0.300L Normality = 0.1381 x 1 eq/mol 0.300 L Therefore Normality = 0.460 N Example 2- Determine the normality of 0.248mol of H2SO4, which is dissolved in 250mL of solution. Solution Equivalent solute = 0.248mol x 2eq/mol Solution = 250 mL = 0.250L Normality = 0.248mol x 2 eq /mol 0.250L Therefore Normality = 1.984 N

Raghav Patidar 7 years ago

Normility : the no. of mole equivalent per litre volume N = n- factor ×M(molarity)

ANSWER

Summarise the ghate of the only world in simple words?

Posted by Sivan Karthick 7 years ago

CBSE > Class 11 > English Core

1 answers

Vishakha Joshi 7 years ago

Ghat of the only world in short is the biography of agashahidali written by amitav ghosh . Shahid asks amitav to write something about him after his death so to fullfill his promise amitav wrote this chapter.This ch reveals shahids attitude towards life as he happily accepts death and his last wish was to meet his mother in after life if their was a afterlife.shahid was a grest friend,social person,loving and a great cook also. Rest you need to remember the incidents given in book like barcelona airport etc

ANSWER

What is hydroponics??

Posted by Upanita Biswas 7 years ago

CBSE > Class 11 > Biology

2 answers

Ayushi Ayushi 7 years ago

Hydroponics is a subset of hydroculture, which is a method of growing plants without soil by using mineral nutrient solutions in a water solvent.[1] Terrestrial plants may be grown with only their roots exposed to the mineral solution, or the roots may be supported by an inert medium, such as perlite or gravel. The nutrients used in hydroponic systems can come from an array of different sources; these can include, but are not limited to, byproduct from fish waste, duck manure, or purchased chemical fertilisers.

Saba Elias 7 years ago

Hydrophonic or hydrophobic

ANSWER

what is cell envelop

Posted by Sivan Karthick 7 years ago

CBSE > Class 11 > Biology

2 answers

Říý@ ?? 7 years ago

Cell envelope is a combination of the cell membrane, cell wall, and an outer membrane if it is present. Usually, this envelope is a characteristic of prokaryotes like bacteria. Hence, the composition would be cell membrane, bacterial cell wall and bacterial outer membrane (made of glycocalyx).

Saba Elias 7 years ago

It is the outer protective covering of all most bacterias.it is made up of 3 layers each layer is stocked with each other they are-1) glycocalyx or the outermost layer. 2)cell wall or the middle layer 3)cell membrane or inner most layer