SWARA'Z ACADEMIC SNOWS
SWARA'Z ACADEMIC SNOWS
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Critical temperature; Critical pressure and Critical volume//unit-5// States of matter//+1 chemistry
Critical temperature; Critical pressure and Critical volume//unit-5// States of matter//+1 chemistry.
Critical temperature
It is the temperature above which a gas cannot be liquefied however the large pressure maybe
This also means that the above critical temperature the gaseous state become permanent and gaseous are called permanent gases
For Example
Critical temperature of carbon dioxide is 30.98 degree Celsius.
Mathematically
critical temperature=8a/27Rb
Where a,b are vander waal constant.
R is the gas constant.
2)Critical pressure
The corresponding pressure to liquefied the gas at critical temperature is its critical pressure.
The critical pressure of substance is the pressure required to l...
Просмотров: 41

Видео

Andrew Experiments on critical phenomena// Unit-5//States of matter//+1 Chemistry
Просмотров 1821 день назад
Andrew Experiments on critical phenomena// Unit-5//States of matter// 1 Chemistry Thomas Andrew studied the isotherms of carbon dioxide at different temperature.He plotted the graph between pressure and volume at constant temperature is called PV diagram or isotherms. He started the effect of pressure on the volume of carbon dioxide at different constant temperature at the lowest temperature gi...
Liquefaction of gases//unit -5//States matter//+1 Chemistry
Просмотров 36Месяц назад
Liquefaction of gases//unit -5//States matter// 1 Chemistry . We know that the gaseous and liquid states of substance differ in intermolecular distances. In case a gas is to be liquefied the intermolecular distance have to decrease so that the molecules of the gas be come close and ultimately get aggregated to change into liquid state.This can be achieved either by lowering the temperature or i...
Explanation for the exceptional behaviour of H2 and He//unit-5// State of matter//+1 Chemistry
Просмотров 282 месяца назад
Explanation for the exceptional behaviour of H2 and He//unit-5// State of matter// 1 Chemistry . Molecules of both these gases are small size and intermolecular forces of attraction in them are extremely small . This means that a is very small and a/V square can be neglected.The van der equation for one mole of gas may be written as (P a/Square)(V-b)=RT P(V-b)=RT PV/RT=1 Pb/RT Z=1 Pb/RT It is c...
At low pressure and high temp.// unit-5 //States of matter//+1 Chemistry
Просмотров 222 месяца назад
At low pressure and high temp.// unit-5 //States of matter// 1 Chemistry Under these conditions volume of the gas will be large. Theyfore both a/Vsquare can be neglected. PV=RT PV/RT=1 Z=1 The gas will behaves behave as ideal under these conditions. NCERT TGT TET NDA N E E T AIEEE SCIENCE 1 CHEMISTRY STATE BOARD COMPITITION THANK YOU U TUBE
At high pressure and ordinary temperature//unit-5// States of matter //l+Chemistry
Просмотров 322 месяца назад
At high pressure and ordinary temperature//unit-5// States of matter //l 1Chemistry At high pressure volume of the gas is quite small .The quantity a/Vsquare become negligible. However be cannot be negative neglected . P(V-b)=RT PV=RT PB PV/RT=1 Pb/RT Z=1 Pb/RT Under these conditions the compressibility factor is more than one. NCERT TGT TET NDA N E E T AIEEE SCIENCE 1 CHEMISTRY STATE BOARD COM...
At low pressure and ordinary temperature//unit-5 //States of matter//+1 Chemistry
Просмотров 162 месяца назад
At low pressure and ordinary temperature//unit-5 //States of matter// 1 Chemistry At low pressure and ordinary temperature volume of the gas is very large and constant b can be neglected. (P a/Vsquare)V=RT PV=RT-a/V PV/RT=1-a/VRT Z=1-a/VRT This means that under this conditions the compressibility factor is less than 1. NCERT TGT TET NDA N E E T AIEEE SCIENCE 1 CHEMISTRY STATE BOARD COMPITITION ...
Units of van der waals constant /unit -5/ States of matter //+1Chemistry
Просмотров 592 месяца назад
Units of van der waals constant /unit -5/ States of matter // 1Chemistry according to vanderwaal equation. (P an square/Volume square)(V-nb)=nRT P=an square/Volume square P=pressure x volume square/moles P=atm litre square per mol square (cgs unit) P=Newton meter four per mol square( SI unit) Vander waals constant b:- V=nb b=v/n b=Meter cube per mol (SI unit) b=litre per mol.(cgs) NCERT TGT TET...
Significance of Van der Waals constant//Unit- 5// States of matter //+1 Chemistry//
Просмотров 262 месяца назад
Significance of Van der Waals constant//Unit- 5// States of matter // 1 Chemistry// a)Van der waal constant a is the magnitude of attractive forces among the molecules in the particular gas. Greater the value of a more will be the attractive forces in case of polar molecules greater the value of a and it is easily liquefied where is known polar molecule which is not liquefied easily . b) Van de...
Correction for pressure in vender waal eq//State of matter// +1Chemistry//Unit -5//State of matter
Просмотров 92 месяца назад
Correction for molecular molecular attraction or Correction for pressure //State of matter// 1Chemistry//Unit -5//State of matter For ideal gas equation PV = nRT let two molecules A and B. molecule A lying within the vessel is attracted equally by other molecules on all side.the resultant pull on the molecule is negligible. The molecule B near the wall is attracted by molecule inword there is n...
Correction in Volume in vender waals equation./+1 Chemistry/Unit-5/State of matter
Просмотров 642 месяца назад
Correction in Volume in vender waals equation./ 1 Chemistry/Unit-5/State of matter. Correction in volume . We know the ideal gas equation PV=nRT ACCORDING TO kinetic theory 1)volume of the gas molecules is negligible as compared to total volume. 2)No Force of attraction b/n the molecules.This postulate is only satisfy if gas molecules is far each other. In case of real gases this postulate is n...
Van der waals equation//Unit -5//State of matter//+1 Chemistry//
Просмотров 173 месяца назад
Van der waals equation//Unit -5//State of matter// 1 Chemistry// The van der waal equation was given by J.D. van der waals in 1873 modified the ideal gas equation by applying appropriate correction. 1) Volume of the gas molecule and 2)Force is of attraction between the gas molecules. For 1 mole of gas (p a/square of V)(V-b)=RT For n moles of gas (p an2/square of V)(V-b)=RT a and b are constant....
Boyle's temperature or Boyle's point//Unit-5// States of matter//+1Chemistry
Просмотров 1223 месяца назад
Boyle's temperature or Boyle's point//Unit-5// States of matter// 1Chemistry. Real gases can behave ideally at high temperature and low pressure.As a temperature of real gases is started increasing it tends to reach the ideality.At a particular temperature these gases behave like Ideal gases.This temperature is called Boyle's temperature. It is called boyle's temperature because at this tempera...
Causes of deviation from Ideal behaviour//Unit-5 //States of matter// +1 chemistry
Просмотров 1003 месяца назад
Causes of deviation from Ideal behaviour//Unit-5 //States of matter// 1 chemistry The real gases obey ideal gas equation (PV= nRT)only if the pressure is low temperature high. However is the pressure is high or temperature is low the real gases show deviation from Ideal behaviour. When high pressure or low temperature the following two postulate of kinetic theory of gases are faulty. Molecular ...
Value of compressibility factor for ideal gas and real gas.//unit -5//States of matter//+1 Chemist.
Просмотров 353 месяца назад
Compressibility factor &Value of compressibility factor for ideal gas and real gas.//unit -5//States of matter// 1 Chemistry What is mean by term compressibility factor the real gases? Ans The real gas do not obey the ideal gas equations that is PV is not equal to nRT. This deviation from ideal gas from ideal gas equation is expressed by the compressibility factor (Z) Z=PV/nRT Question What is ...
Question based on study of deviation from ideal behaviour//unit-5//States of matter//+1 Chemistry
Просмотров 353 месяца назад
Question based on study of deviation from ideal behaviour//unit-5//States of matter// 1 Chemistry
Study of deviation from ideal behaviour// unit-5 //States of matter// +1Chemistry
Просмотров 243 месяца назад
Study of deviation from ideal behaviour// unit-5 //States of matter// 1Chemistry
Difference between Ideal gas and Real gas//unit-5//States of matter//+1 Chemistry
Просмотров 863 месяца назад
Difference between Ideal gas and Real gas//unit-5//States of matter// 1 Chemistry
Dalton's law on the basis of kinetic molecular theory/U-5/States of matter/+1Chemistry
Просмотров 163 месяца назад
Dalton's law on the basis of kinetic molecular theory/U-5/States of matter/ 1Chemistry
Charles' law on the basis of kinetic molecular theory//Unit- 5 //States of matter// +1Chemistry.
Просмотров 343 месяца назад
Charles' law on the basis of kinetic molecular theory//Unit- 5 //States of matter// 1Chemistry.
Boyle's law on the basis of kinetic molecular theory//Unit- 5 //States of matter// +1Chemistry.
Просмотров 253 месяца назад
Boyle's law on the basis of kinetic molecular theory//Unit- 5 //States of matter// 1Chemistry.
kinetic energy of gas is proportional to absolute temperature Unit- 5 States of matter/+1chemistry.
Просмотров 753 месяца назад
kinetic energy of gas is proportional to absolute temperature Unit- 5 States of matter/ 1chemistry.
Derivation of kinetic gas equation //Unit-5// States of matter// + 1 chemistry//
Просмотров 113 месяца назад
Derivation of kinetic gas equation //Unit-5// States of matter// 1 chemistry//
Postulates of kinetic molecular theory for gas//Unit-5// States of matter//+1Chemistry
Просмотров 114 месяца назад
Postulates of kinetic molecular theory for gas//Unit-5// States of matter// 1Chemistry
Importance of Graham's law of diffusion //Unit -5 //+ 1 chemistry //States of matter
Просмотров 154 месяца назад
Importance of Graham's law of diffusion //Unit -5 // 1 chemistry //States of matter
Graham's law of diffusion//+1Chemistry //Unit-5//State of matter
Просмотров 324 месяца назад
Graham's law of diffusion// 1Chemistry //Unit-5//State of matter
Difference between diffusion and effusion//Unit-5//+1Chemistry//States of matter
Просмотров 284 месяца назад
Difference between diffusion and effusion//Unit-5// 1Chemistry//States of matter
Application of Dalton's law of partial pressure//+1Chemistry//Unit-5//States of matter
Просмотров 574 месяца назад
Application of Dalton's law of partial pressure// 1Chemistry//Unit-5//States of matter
Problem based on partial pressure//Unit-5//+1Chemistry//State of matter
Просмотров 264 месяца назад
Problem based on partial pressure//Unit-5// 1Chemistry//State of matter
Express the partial pressure in terms of mole fraction//Unit-5//+1 Chemistry//States of matter
Просмотров 754 месяца назад
Express the partial pressure in terms of mole fraction//Unit-5// 1 Chemistry//States of matter

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