1] What is a crystal? Through which process crystals of a substance are obtained? [1+1=2]
2] State Henry's law. [2]
3] What is a solubility curve? Write its any two applications. [2+2=4]
4] Define unsaturated solution. Give three examples of hygroscopic substances. [2+2=4]
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⭐⭐⭐⭐⭐ ANSWER ⭐⭐⭐⭐⭐
❄❄❄ SOLUTION 1 ❄❄❄
➡ A crystal is a homogeneous solid of definite geometrical shape. It has symmetrically arranged smooth plane surfaces which meet forming the sharp edges.
➡ The crystals of a substance are obtained through the process of CRYSTALLISATION.
❄❄❄ SOLUTION 2 ❄❄❄
➡ Henry's law states that at any given temperature, the mass of gas dissolved by a fixed volume of liquid is directly proportional to the pressure on the surface of the liquid.
❄❄❄ SOLUTION 3 ❄❄❄
➡ A solubility curve is a line graph that plots changes in solubility of a solute in a solvent against changing temperature.
➡ APPLICATIONS : (A) The solubility of a substance at a particular temperature can be determined from the curve.
(B) Solubilities of different solutes in a solvent at different temperatures can be compared through the solubility curve.
(C) The effect of cooling of hot solutions of different substances can be found from the curves.
❄❄❄ SOLUTION 4 ❄❄❄
➡ A solution in which more of the solute can be dissolved at a given temperature is known as an unsaturated solution.
➡ Three examples of HYGROSCOPIC SUBSTANCES :
(A) Concentrated Sulphuric Acid.
(B) Phosphorus pentoxide.
(C) Quicklime.
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⭐⭐⭐ ALWAYS BE BRAINLY ⭐⭐⭐
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❄❄❄ SOLUTION 1 ❄❄❄
➡ A crystal is a homogeneous solid of definite geometrical shape. It has symmetrically arranged smooth plane surfaces which meet forming the sharp edges.
➡ The crystals of a substance are obtained through the process of CRYSTALLISATION.
❄❄❄ SOLUTION 2 ❄❄❄
➡ Henry's law states that at any given temperature, the mass of gas dissolved by a fixed volume of liquid is directly proportional to the pressure on the surface of the liquid.
❄❄❄ SOLUTION 3 ❄❄❄
➡ A solubility curve is a line graph that plots changes in solubility of a solute in a solvent against changing temperature.
➡ APPLICATIONS : (A) The solubility of a substance at a particular temperature can be determined from the curve.
(B) Solubilities of different solutes in a solvent at different temperatures can be compared through the solubility curve.
(C) The effect of cooling of hot solutions of different substances can be found from the curves.
❄❄❄ SOLUTION 4 ❄❄❄
➡ A solution in which more of the solute can be dissolved at a given temperature is known as an unsaturated solution.
➡ Three examples of HYGROSCOPIC SUBSTANCES :
(A) Concentrated Sulphuric Acid.
(B) Phosphorus pentoxide.
(C) Quicklime.
==================================
⭐⭐⭐ ALWAYS BE BRAINLY ⭐⭐⭐
==================================
Answered by
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❤ HERE IS YOUR ANSWER ❤
______________________________
1) A crystal is a homogeneous solid of definite geometrical shape. It has symmetrically arranged smooth plane surfaces which meet forming the sharp edges.
The crystals of a substance are obtained through the process of CRYSTALLISATION.
______________________________
2) Henry's law states that at any given temperature, the mass of gas dissolved by a fixed volume of liquid is directly proportional to the pressure on the surface of the liquid.
______________________________
3) A solubility curve is a line graph that plots changes in solubility of a solute in a solvent against changing temperature.
APPLICATIONS : (A) The solubility of a substance at a particular temperature can be determined from the curve.
(B) Solubilities of different solutes in a solvent at different temperatures can be compared through the solubility curve.
(C) The effect of cooling of hot solutions of different substances can be found from the curves.
______________________________
4) A solution in which more of the solute can be dissolved at a given temperature is known as an unsaturated solution.
Three examples of HYGROSCOPIC SUBSTANCES :
(A) Concentrated Sulphuric Acid.
(B) Phosphorus pentoxide.
(C) Quicklime.
______________________________
______________________________
1) A crystal is a homogeneous solid of definite geometrical shape. It has symmetrically arranged smooth plane surfaces which meet forming the sharp edges.
The crystals of a substance are obtained through the process of CRYSTALLISATION.
______________________________
2) Henry's law states that at any given temperature, the mass of gas dissolved by a fixed volume of liquid is directly proportional to the pressure on the surface of the liquid.
______________________________
3) A solubility curve is a line graph that plots changes in solubility of a solute in a solvent against changing temperature.
APPLICATIONS : (A) The solubility of a substance at a particular temperature can be determined from the curve.
(B) Solubilities of different solutes in a solvent at different temperatures can be compared through the solubility curve.
(C) The effect of cooling of hot solutions of different substances can be found from the curves.
______________________________
4) A solution in which more of the solute can be dissolved at a given temperature is known as an unsaturated solution.
Three examples of HYGROSCOPIC SUBSTANCES :
(A) Concentrated Sulphuric Acid.
(B) Phosphorus pentoxide.
(C) Quicklime.
______________________________
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