A. What effect does particle size have on the rate at which a solute dissolves?

Question

A. What effect does particle size have on the rate at which a solute dissolves? B. Why does shaking a test tube with a solute affect the rate of dissolution? C. Effect of temperature on potassium nitrate crystals 1. 20 mL of cold water with 10g of ice no change, potassium nitrate crystals slowly dissolving as ice melts 2. Water at room temperature 3. 25mL of boiling water Explain the above 3 observations in terms of kinetic molecular theory. What can be said about the solubility of potassiumnitrate based on the above observations? crystals slowly dissolving potassium nitrate crystals dissolved immediately D. How do you classify a solute as nonpolar? E Why can a substance be a solvent in one system and a solute in another? F. What is the name of a solution which contains the maximum amount of solute at a given temperature? d Firefox kelm106,pdf

Explanation / Answer

Ans

A) Particle size plays an important role in dissolution . The smaller particles are more readily soluble as they have larger surface areas in comparison to the larger particles , which have lesser total surface area.

B) Shaking of testtube brings more of the fresh solute in contact with the solvent particles , due to which it becomes more soluble in the solvent.

C) As the temperature of the solution increases , the kinetic energy of the solute particles. This causes more effective collisions within the solution mixture which will lead to more dissolution of the solute KNO3.

D) When there is equal distribution of shared pair of electrons between the atoms of a covalent molecule , it is referred to as non polar molecule.

E) When the component is present in the lesser amount in the solution , it is termed as solute. When the same component is present in the larger amount in the other solution , it can be referred to as solvent.

F) The saturated solution contains the maximum amount of solute at a given temperature so that no more of the solute can be dissolved into it.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.