Factors Affecting Solubility Quiz Test!

Explanation
When a gas is heated in a liquid solution, the solubility of the gas decreases. This is because heating the solution increases the kinetic energy of the gas molecules, causing them to move more rapidly and escape from the liquid phase. As a result, fewer gas molecules remain dissolved in the liquid, leading to a decrease in solubility.

Explanation
Increasing the pressure of a gas in a liquid solution will cause the gas to dissolve more readily in the liquid. This is because an increase in pressure increases the concentration of gas molecules above the liquid, which in turn increases the likelihood of gas molecules colliding with and dissolving into the liquid. Therefore, increasing the pressure of a gas in a liquid solution will increase the amount of gas that can be dissolved in the solution.

Explanation
When the kinetic energy of a solid particle in a liquid increases, it means that the particle is moving faster. This increase in kinetic energy can be attributed to factors such as an increase in temperature or an external force acting on the particle. As the particle moves faster, it collides more frequently and with greater force with other particles in the liquid. This increased movement and collisions result in a greater dispersion of the particle within the liquid, causing it to spread out and occupy a larger volume. Therefore, the correct answer is "Increase".

Explanation
When you increase the particle size of the solute, the rate of dissolution decreases. This is because larger particles have a smaller surface area compared to smaller particles. The dissolution process occurs at the surface of the solute particles, so with a smaller surface area, there are fewer contact points for the solvent molecules to interact with. As a result, it takes longer for the solute particles to dissolve, leading to a decrease in the rate of dissolution.

Explanation
When you increase the surface area of the solute exposed to the solvent, more solute particles are in contact with the solvent. This allows for a greater number of solute-solvent interactions, leading to a higher rate of dissolution. Therefore, the rate of dissolution increases when the surface area of the solute is increased.

Explanation
Heating a solid in a liquid solution increases the rate of dissolution. When a solid is heated, the particles gain more energy and move faster, leading to increased collisions between the solid particles and the solvent molecules. This increased collision frequency and energy allows for more effective breaking of intermolecular forces between the solid particles, resulting in the solid dissolving at a faster rate. Therefore, heating a solid in a liquid solution increases the rate of dissolution.

Explanation
When stirring a solid-liquid solution, the rate of dissolution increases. This is because stirring increases the contact between the solid solute and the liquid solvent, allowing for a greater surface area of the solute to be exposed to the solvent. As a result, more solvent molecules come into contact with the solute, leading to a faster dissolution process. Stirring also helps in dispersing the solute particles evenly throughout the solvent, preventing clumping or settling, and promoting a more efficient dissolution.

Explanation
When the concentration of a substance increases, the rate of dissolution decreases. This is because a higher concentration means that there are more solute particles in a given volume of solvent, leading to a higher chance of solute-solute interactions and a lower chance of solute-solvent interactions. As a result, it becomes more difficult for the solute particles to break apart and mix with the solvent, causing the rate of dissolution to decrease.

Explanation
When polar solutes are dissolved in polar solvents, the chance of the solute to dissolve increases. This is because polar solutes have positive and negative charges, and polar solvents have similar charges. As a result, the positive and negative charges of the solute are attracted to the charges of the solvent molecules, leading to a stronger interaction and higher solubility. Therefore, the chance of the solute to dissolve is increased when polar solutes are dissolved in polar solvents.

Explanation
Increasing the pressure in a solid in a liquid solution does not affect the solution. This is because the pressure applied to the solid does not have a direct impact on the properties or behavior of the liquid. The pressure only affects the solid, causing it to compress or change in volume, but it does not alter the composition or characteristics of the liquid solution. Therefore, the correct answer is "Not affected".