Which of the Following Must Be True If the Dissolution

question 69

Multiple Choice

Which of the following must be true if the dissolution of an ionic solid in water is exothermic?

• A)The process requires energy.
• B)The solubility will increase with increasing temperature.
• C)The hydration energy exceeds the lattice energy.
• D)The ions must have charges greater in magnitude than 1.
• E)The change in enthalpy for this process is positive.

---

Definitions:

Direct Materials

Raw materials that are directly incorporated into a finished product and can easily be traced to the product.

Quantity Variance

The difference between the expected and actual quantities of inputs used in the production process, affecting the cost of goods sold.

Price Variance

The difference between the actual cost of a good or service and its expected or budgeted cost.

Total Cost Variance

The difference between the actual cost incurred and the standard cost, reflecting how well costs are controlled during a production process.