pellets of calcium chloride are spread on a sidewalk covered in water that is 36°c. under which circumstance…

pellets of calcium chloride are spread on a sidewalk covered in water that is 36°c. under which circumstance will the calcium chloride dissolve faster? sand is sprinkled on the sidewalk. the water cools to a temperature of 33°c. people walking on the sidewalk crush the calcium chloride pellets. the air pressure increases as the weather changes.

pellets of calcium chloride are spread on a sidewalk covered in water that is 36°c. under which circumstance will the calcium chloride dissolve faster? sand is sprinkled on the sidewalk. the water cools to a temperature of 33°c. people walking on the sidewalk crush the calcium chloride pellets. the air pressure increases as the weather changes.

Answer

Brief Explanations:

Increasing the surface - area to volume ratio of a solute increases the rate of dissolution. Crushing the calcium chloride pellets increases their surface area, allowing more of the solid to come into contact with the water and dissolve faster. Sand sprinkling has no direct effect on dissolution. Lowering water temperature generally decreases dissolution rate for most solids. Air pressure has little effect on the dissolution of solids in water.

Answer:

People walking on the sidewalk crush the calcium chloride pellets.