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The critical state



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Q1. Overall transformation rate changes with temperature as follows under what condition?

(a) Decreases
(b) Increases then decreases
(c) Follows a linear path
(d) Increases with temperature

Q2. Where does the particle growth occur?

(a) Movement of grains
(b) Movement of equilibrium liquid
(c) Equilibrium mixture
(d) Non equilibrium mixture

Q3. Which of the following is not responsible for phase deposition?

(a) Container wall
(b) Grain size
(c) Stacking effect
(d) Disjoints

Q4. During metastable state, the size of the particle_________

(a) Increases
(b) Decreases
(c) Won?t change
(d) Not related

Q5. Which of the following statements are correct about the equilibrium point on a two component system?

(a) All the compounds are liquid
(b) The boiling point of the mixture is less than the boiling points of the individual compounds
(c) The degree of freedom is 0
(d) Invariant reaction takes place

Q6. What does the term ? metastable? indicate?

(a) A place where the composition of the system remains constant
(b) A place where the pressure remains constant with low value
(c) An area below which a vapor- liquid mixture is obtained
(d) A region where the temperature remains constant

Q7. Which of the following statements is not true for a system that has reached the eutectic temperature?

(a) The system is a open system
(b) The system is a miscible fluid
(c) Components lie in liquid state
(d) A region between sublimation and eutectic curve lies stable

Q8. With reference to a two component system, an isobar indicates _______

(a) A region where the temperature remains constant
(b) An area below phase end products remains
(c) An area above which only the liquid vapors remains
(d) A region where the composition lies in equilibrium

Q9. With reference to a two component system, a vapor line indicates ________

(a) A region where the temperature and pressure remains stable
(b) A region where the solubility remains constant
(c) An area below which components do not mingle
(d) An area above which both the components mingle to form a single mixture

Q10. What is the definition of a lower critical temperature?

(a) The minimum temperature at which equilibrium is achieved
(b) The lowest temperature at which two components will attain vapor state
(c) The lowest temperature at which two components sublimates
(d) The lowest temperature at which two components form a mixture


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459 views

In A Closed Flask Of 5 Litres, 1.0 G Of H2 Is Headed From 300 To 600 K. Which Statement Is Not Correct

Modified 243 Year Ago

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243 Year Ago

In A Closed Flask Of 5 Litres, 1.0 G Of H2 Is Headed From 300 To 600 K. Which Statement Is Not Correct

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440 views

Equal Amounts Of Two Gases Of Molecular Weight 4 And 40 Are Mixed. The Pressure Of The Mixture Is 1.1 Atm. The Partial Pressure Of The Light Gas In This Mixture Is

Modified 243 Year Ago

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243 Year Ago

Equal Amounts Of Two Gases Of Molecular Weight 4 And 40 Are Mixed. The Pressure Of The Mixture Is 1.1 Atm. The Partial Pressure Of The Light Gas In This Mixture Is

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Assertion : Effusion Rate Of Oxygen Is Smaller Than Nitrogen. Reason : Molecular Size Of Nitrogen Is Smaller Than Oxygen.

Modified 243 Year Ago

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243 Year Ago

Assertion : Effusion Rate Of Oxygen Is Smaller Than Nitrogen. Reason : Molecular Size Of Nitrogen Is Smaller Than Oxygen.

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412 views

Molecules/ions And Their Magnetic Properties Are Given Below

Modified 243 Year Ago

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243 Year Ago

Molecules/ions And Their Magnetic Properties Are Given Below

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Assertion : We Air Is Heavier Than Dry Air. Reason : The Density Of A Dry Air Is More Than Density Of Water.

Modified 243 Year Ago

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243 Year Ago

Assertion : We Air Is Heavier Than Dry Air. Reason : The Density Of A Dry Air Is More Than Density Of Water.

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0 Answer
402 views

Assertion : 4.58mm And 0.0098°C Is Known To Be Triple Point Of Water. Reason : At This Pressure And Temperature All The Three States I.e., Water, Ice And Vapour Exist Simultaneously.

Modified 243 Year Ago

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243 Year Ago

Assertion : 4.58mm And 0.0098°C Is Known To Be Triple Point Of Water. Reason : At This Pressure And Temperature All The Three States I.e., Water, Ice And Vapour Exist Simultaneously.

0 votes
0 Answer
397 views

A Weather Ballon Filled With Hydrogen At 1 Atm And 27° C Has Volume Equal To 12000 Litres. On Ascending It Reaches A Place Where The Temperature Is -23°C And Pressure Is 0.5 Atm. The Volume Of The

Modified 243 Year Ago

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243 Year Ago

A Weather Ballon Filled With Hydrogen At 1 Atm And 27° C Has Volume Equal To 12000 Litres. On Ascending It Reaches A Place Where The Temperature Is -23°C And Pressure Is 0.5 Atm. The Volume Of The

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