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Answered on 11/11/2018 CBSE/Class 11/Science/Chemistry/Unit 5-States of Matter: Gases and Liquids CBSE/Class 11/Science/Chemistry

Binesh Thomas

Tutor

Idea gas equation PV =nRT,. Here no of moles n=1 Therefore equation becomes PV= RT
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Answered on 14/11/2018 CBSE/Class 11/Science/Chemistry/Unit 5-States of Matter: Gases and Liquids CBSE/Class 11/Science/Chemistry

Selvakumar Chidambaram

Chemistry class for all board student

Due to state transmission
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Answered on 14/11/2018 CBSE/Class 11/Science/Chemistry/Unit 5-States of Matter: Gases and Liquids CBSE/Class 11/Science/Chemistry

What is the effect of temperatures on the vapour pressure of a liquid? read more
What is the effect of temperatures on the vapour pressure of a liquid? read less

Samina Y.

Chemistry Tutor

With increase in temperature vapour pressure also increases
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Answered on 13/11/2018 CBSE/Class 11/Science/Chemistry/Unit 5-States of Matter: Gases and Liquids CBSE/Class 11/Science/Chemistry

A neon-dioxygen mixture contains 70.6 g dioxygen and 167.5g neon. If pressure of the mixture of gases... read more
A neon-dioxygen mixture contains 70.6 g dioxygen and 167.5g neon. If pressure of the mixture of gases in the cylinder is  25 bar. What is the partial pressure of dioxygen and neon in the mixture? read less

Synergy Institute of Excellence

According to Dalton's Law Of Partial Pressure P(x)= P X1 ; X1 of Ne = n(Ne)/( n(Ne)+n(O2) ) Partial partial pressure is equal to mole fraction x total pressure of the mixtureFind the mole fraction as given w e i g h t upon molar massUse the same and i am sure after applying the values you will... read more
According to Dalton's Law Of Partial Pressure
 
P(x)= P X1   ; [X1 is Mole fraction ]
 
X1 of Ne = n(Ne)/( n(Ne)+n(O2) )
 
Partial partial pressure is equal to mole fraction x total pressure of the mixtureFind the mole fraction as given w e i g h t upon molar mass
Use the same and i am sure after applying the values you will be able to get your answer
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Answered on 13/11/2018 CBSE/Class 11/Science/Chemistry/Unit 5-States of Matter: Gases and Liquids CBSE/Class 11/Science/Chemistry

Which of the following is the correct mathematical relation for Charles law at constant pressure? (a)... read more
Which of the following is the correct mathematical relation for Charles law at constant pressure?
(a) VαT (b) Vαt. (c) Vα1/T (d) all of above read less

Rahiman P

Lecturer

A
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Answered on 25/11/2018 CBSE/Class 11/Science/Chemistry/Unit 5-States of Matter: Gases and Liquids CBSE/Class 11/Science/Chemistry

The drain cleaner, Drainex contains small bits of aluminium which react with caustic soda to produce... read more
The drain cleaner, Drainex contains small bits of aluminium which react with caustic soda to produce dihydrogen. What volume of dihydrogen at 20 °C and one bar will be released when 0.15g of aluminium reacts? read less

Ram Mirdha

Tutor

2NaoH +2Al +2H2O --. 2NaAlO2 + 3H2 From the reaction 2 moles of Al produces 3 moles of H2 ∴ 1mole of Al will produce 1.5 moles of H2 Moles of Al = weight of Al/ molecular weight of Al = .15/27 Now moles of H2 = (3/2)×(.15/27) = 1/120 Volume... read more

2NaoH +2Al +2H2O  --. 2NaAlO2 + 3H2

From the  reaction

2 moles of Al produces 3 moles of H2

 ∴ 1mole of Al  will produce 1.5 moles of H2

Moles of Al = weight of Al/ molecular weight of Al

                = .15/27

 Now  moles of H2 = (3/2)×(.15/27)

                                 = 1/120

Volume of 1 mole of any gas is 22.4 L

∴Volume of H2 = 22.4×(1/20)

                           = 0.1867 Litre

 

 

 

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Answered on 05 Jan CBSE/Class 11/Science/Chemistry/Unit 5-States of Matter: Gases and Liquids CBSE/Class 11/Science/Chemistry

Define boiling point of a liquid.

Prabhat Chandra

Mechanical is my subject and Mechanic is my name.

When temperature rises higher from sublimation point to critical zero is called boiling point.
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Answered on 07/11/2018 CBSE/Class 11/Science/Chemistry/Unit 5-States of Matter: Gases and Liquids CBSE/Class 11/Science/Chemistry

What is SI unit of (i) Viscosity (ii) Surface tension?

Fatima Jabeen

MSC (mathematics, statistics, computer science) tutor

SI units of viscosity: Ns/m^2 SI units of surface tension: N/m
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Answered on 03 Jan CBSE/Class 11/Science/Chemistry/Unit 5-States of Matter: Gases and Liquids CBSE/Class 11/Science/Chemistry

What do you mean by compressibility factor?

SUSANTA SINGHA

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