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JEE-Main - Grade 11 - Chemistry - States of Matter - Importance and Snapshot of States Of Matter - Study ref# 662

Introduction: Most of the observable characteristics of chemical systems with which we are familiar represents bulk properties of matter, i.e., the properties associated with a collection of a large number of atoms, ions  or molecules.... read more

JEE-Main - Grade 11 - Chemistry - States of Matter - Importance and Snapshot of States Of Matter - Study ref# 663

Following sections must be covered to understand the States Of Matter: 1. Intermolecular Forces 2. Thermal Energy 3. Intermolecular Forces vs Thermal Interactions 4. The Gaseous State 5. The Gas Laws 6. Ideal Gas Equation 7... read more

JEE-Main - Grade 11 - Chemistry - States of Matter - Target Setup for States Of Matter - Study ref# 664

Student requires to achieve the following milestones to get better grip over State of Matter. The milestones / targets are as follows:-Starting Point: Days 0Test TypeAppear on TestTarget TestsScorePractice Test000%Chapter Test000%Subj... read more

JEE-Main - Grade 11 - Chemistry - Thermodynamics (Chemistry) - Importance and Snapshot of Thermodynamics - Study ref# 665

Introduction: Chemical energy stored by molecules can be released as heat during chemical reactions when a fuel like methane, cooking gas or coal burns in air. The chemical energy may also be used to do mechanical work when a fuel burn... read more

JEE-Main - Grade 11 - Physics - Thermal Properties of Matter - Study ref# 737

a) State Newton’s law of cooling.b) If a hot body at temperature  is placed in a surrounding at temperature , deduce the relation .c) Represent Newton’s law of cooling graphically. Answer: a) Newton’s law of cooling:&... read more

JEE-Main - Grade 11 - Physics - Thermal Properties of Matter - Study ref# 739

a) The energy emitted by a black body for radiation of wavelength , is denoted by . Show the variation of  on a graph for different temperature of blackbody.b) State Wien’s displacement law. Answer: a)  b) Wien... read more

JEE-Main - Grade 11 - Chemistry - States of Matter - Study ref# 1402

What will be the minimum pressure required to compress 500 dm3 of air at 1 bar to 200 dm3 at 30℃ Answer: p1=1 bar,p2=?, V1=500dm3, V2=200 dm3   p1V1=p2V2    bar   Hints:              Apply Boyle’s l... read more

JEE-Main - Grade 11 - Chemistry - States of Matter - Study ref# 1403

A vessel of 120 mL capacity contains a certain amount of gas at 35℃ and 1.2 bar pressure. The gas is transferred to another vessel of volume 180 mL at 35℃ . What would be its pressure? Answer: p1=1.2 bar,p2=?, V1=120mL, V2=... read more

JEE-Main - Grade 11 - Chemistry - States of Matter - Study ref# 1404

Using the equation of state pV=nRT; show that at a given temperature, density of a gas is proportional to gas pressure p. Answer:              pV=nRT             pV=                                                                            ... read more

JEE-Main - Grade 11 - Chemistry - States of Matter - Study ref# 1405

The drain cleaner, Drainex contains small bits of aluminium which react with caustic soda to produce dihydrogen. What volume of dihydrogen at 20℃ and 1 bar will be released when 0.15g of aluminium reacts? Answer: 2Al    +   2NaOH  +  2... read more

JEE-Main - Grade 11 - Chemistry - States of Matter - Study ref# 1406

Density of a gas is found to be 5.46 g/dm3 at 27℃ and 2 bar pressure. What will be its density at STP? Answer: Density, d= For same gas at different temperatures and pressures:                               read more

JEE-Main - Grade 11 - Chemistry - States of Matter - Study ref# 1407

Calculate the number of electrons present in 1.4g of dinitrogen gas. Answer:  mol   1 mol=6.022×1023 molecules   0.05 mol= 0.05×6.022×1023=0.3011×1023 molecules   1 molecules of N2 contains=14 el... read more

JEE-Main - Grade 11 - Chemistry - States of Matter - Study ref# 1408

How much time would it take to distribute one Avogadro number of wheat grains if 1010 grains are distributed each second? Answer:     Time required =                                          = read more

JEE-Main - Grade 11 - Chemistry - States of Matter - Study ref# 1409

The behaviour of matter in different states is governed by various physical laws. According to you what are the factors that determine the state of matter? Answer: Temperature, pressure, mass and volume are some factors which determine the ... read more

JEE-Main - Grade 11 - Chemistry - States of Matter - Study ref# 1410

What will be the molar volume of nitrogen and argon at 273.15K and 1 atm? Answer: Every gas has 22.4 L molar volume at 273.15 K and 1 atm pressure (STP).... read more

JEE-Main - Grade 11 - Chemistry - States of Matter - Study ref# 1411

A gas that follows Boyle’s law, Charles’ law and Avogadro’s law is called an ideal gas. Under what conditions a real gas would behave ideally? Answer: At low pressure and high temperature, a real gas behaves as an ideal gas.... read more

JEE-Main - Grade 11 - Chemistry - States of Matter - Study ref# 1412

Two different gases ‘A’ and ‘B’ are filled in separate containers of equal capacity under the same conditions of temperature and pressure. On increasing the pressure slightly the gas ‘A’ liquefies but gas B does not liquify even on applying ... read more

JEE-Main - Grade 11 - Chemistry - States of Matter - Study ref# 1413

One of the assumptions of kinetic theory of gases states that “there is no force of attraction between the molecules of a gas.” How far is this statement correct? Is it possible to liquefy an ideal gas? Explain. Answer: This statement is cor... read more

JEE-Main - Grade 11 - Chemistry - States of Matter - Study ref# 1414

Name the energy which arises due to motion of atoms or molecules in a body. How is this energy affected when the temperature is increased? Answer: The energy which arises due to motion of atoms or molecules in a body is known as thermal ener... read more

JEE-Main - Grade 11 - Chemistry - States of Matter - Study ref# 1415

Compressibility factor, Z of a gas is given as Z= (i) What is the value of Z for an ideal gas? (ii) For real gas what will be the effect on value of Z above Boyle’s temperature? Answer: (i) For ideal gas, compressibility factor, Z=1 (ii)... read more

JEE-Main - Grade 11 - Chemistry - States of Matter - Study ref# 1416

The relation between pressure exerted by an ideal gas (pideal) and observed pressure (preal) is given by the equation.                            pideal=preal+  (i) If pressure is taken in Nm-2, number of moles in mol and volume in m3, ca... read more

JEE-Main - Grade 11 - Chemistry - States of Matter - Study ref# 1417

Pressure versus volume graph for a real gas and ideal gas are shown in figure. Answer the following questions on the basis of this graph. (i) Interpret the behaviour of real gas with respect to ideal gas at low pressure. (ii) Interpret... read more

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