Chapter U5, Problem C20.3RE

Interpretation Introduction

Interpretation: From collision theory three ways that could speed up the rate of dissolving sugar in coffee to be named and described. 

Concept introduction: As collision between reactant molecules have enough energy to break the bond in the reactant molecules than a chemical reaction occurs.

Answer to Problem C20.3RE

The ways that could speed up the rate of dissolving sugar in coffee are as follows:

1. Make the cube into powder.
2. Take more number of sugar cubes.
3. Dissolve ice cube before cool the mixing ice into tea.

Explanation of Solution

From collision theory three ways that could speed up the rate of dissolving sugar in coffee are as follows:

1. Make the cube into powder: Powder increases surface area for collision that makes the dissolve faster.
2. Take more number of sugar cubes. It increases concentration of reactant thus increases the rate of reaction.
3. Dissolve the ice cube before cool the mixing ice into tea.

Conclusion

Three ways that could speed up the rate of dissolving sugar in coffee are dissolve ice cube before cool the mixing ice into tea, add more number of sugar cubes and transfer the cube into powder