Describe the effects of temperature and pressure on solubility. If you had used boiling water instead of lukewarm water, would your results have changed? If so, how?

The effect of temperature on solubility is that there's an increase in the solubility of the substance.

Based on the complete information, it should be noted that there's a direct proportional relationship, thereby an increase in temperature will lead to an increase in the solubility of substances in liquids.

Also, pressure does not affect solubility in liquids. Lastly, by using boiling water instead of lukewarm water, there will be an increase the kinetic energy of the solvent molecules and this leads to rapid dissolving of the solute molecules.

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Explanation:

The effect of temperature on solubility of liquid has a direct proportion relationship, hence increased temperature increases the solubility of substances in liquids.

Pressure does not affect solubility in liquids, but the effects can be seen in gases as a direct proportion relationship.

Using boiling water would change the result, increased temperature will increase the kinetic energy of the solvent molecules to break the solute molecules rapidly hence causing the solute molecules to dissolve rapidly

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current