Question

which would increase the solubility of the drink powder mix?
a cooler temperature water
b putting ice in the drink
c warmer temperature water
d having more powder

Explanation:

Solubility of most solids (like drink powder) in liquids (water) increases with temperature. Warmer water has more kinetic energy to break the intermolecular forces in the powder and allow it to dissolve. Cooler water (options A and B) has less kinetic energy. Option D (more powder) affects amount dissolved but not solubility (solubility is amount per unit solvent at a given temperature).

Answer:

C. warmer temperature water